EU BIOFUEL USE AND AGRICULTURAL COMMODITY PRICES: A REVIEW OF THE EVIDENCE BASE Report prepared for Action Aid June 2012 Authors Bettina Kretschmer Catherine Bowyer Allan Buckwell Disclaimer: The arguments expressed in this report are solely those of the authors, and do not reflect the opinion of any other party. Any errors that remain in the report are the responsibility of the authors. To be quoted as: Kretschmer, B, Bowyer, C and Buckwell, A (2012) EU Biofuel Use and Agricultural Commodity Prices: A Review of the Evidence Base. Institute for European Environmental Policy (IEEP): London. Funding from ActionAid is gratefully acknowledged. Credentials for pictures on title page (from top): Martin Vidner via flickr, www.fao.org, SAN_DRINO via flickr, Benediktv via flickr We are grateful for helpful comments on the report from David Baldock and Pernille Schiellerup. We furthermore thank Dearbhla Keegan and Paul van Dam for research support. Institute for European Environmental Policy London Office 15 Queen Anne's Gate London, SW1H 9BU Tel: +44 (0) 20 7799 2244 Fax: +44 (0) 20 7799 2600 Brussels Office Quai au Foin, 55 Hooikaai 55 B- 1000 Brussels Tel: +32 (0) 2738 7482 Fax: +32 (0) 2732 4004 The Institute for European Environmental Policy (IEEP) is an independent not-for-profit institute. IEEP undertakes work for external sponsors in a range of policy areas. We also have our own research programmes and produce the Manual of European Environmental Policy (http://www.europeanenvironmentalpolicy.eu/). For further information about IEEP, see our website at http://www.ieep.eu or contact any staff member. 2 Contents EXECUTIVE SUMMARY.......................................................................................................... 5 1 INTRODUCTION ............................................................................................................. 8 2 EU POLICY DRIVING BIOFUELS DEMAND AND OUTLOOK FOR THIS DEMAND TO 2020 . 9 2.1 What is the current scale of EU demand for biofuels and how is this likely to develop to 2020? .................................................................................................................. 9 2.2 What kind of agricultural crops are currently used to meet EU biofuel demand and how is this likely to develop to 2020? ................................................................................ 11 3 THE FOOD VERSUS FUEL DEBATE IN THE EU: A BRIEF REVIEW OF SOME OF THE MAIN DIMENSIONS ...................................................................................................................... 13 3.1 Why the Concern? ................................................................................................... 13 3.2 Controversy over the fuel and food interaction....................................................... 14 3.3 Determining the extent of biofuel land demands generated by the EU mandate – exploring yield, intensification and use of by-products...................................................... 16 3.3.1 Turning by-products into usable co-products..................................................... 17 3.3.2 Increasing Yield and the potential for agricultural intensification ...................... 18 3.3.3 In summary ....................................................................................................... 20 4 THE ROLE OF VARIOUS KEY FACTORS IN DETERMINING AGRICULTURAL COMMODITY PRICES AND THEIR VOLATILITY ........................................................................................... 22 4.1 A little historical context .......................................................................................... 22 4.2 Key factors influencing global agricultural commodity prices ................................. 23 4.3 Factors influencing demand ..................................................................................... 25 4.4 Factors influencing supply ....................................................................................... 26 4.5 Other factors influencing international agricultural commodity prices ................... 28 4.6 In summary .............................................................................................................. 31 5 THE ROLE OF EU BIOFUEL INCENTIVES ON AGRICULTURAL COMMODITIES PRICES TO 2020: A REVIEW OF SELECTED MODELLING STUDIES .......................................................... 32 5.1 The role of models and our approach to reviewing them ........................................ 32 3 5.1.1 use 5.1.2 The role of models in understanding the agricultural market impacts of biofuel 32 Key characteristics of interest ............................................................................ 33 5.2 Results of the review ............................................................................................... 37 5.2.1 Findings from studies focusing on the effects of EU biofuel policy ..................... 41 5.2.2 Findings from studies analysing global biofuel mandates................................... 44 5.3 Implications for the significance of EU biofuel policy in relation to projected agricultural commodity prices by 2020? ............................................................................. 48 6 IMPLICATIONS FOR POLICY ......................................................................................... 50 7 CONCLUSIONS ............................................................................................................. 54 REFERENCES ....................................................................................................................... 56 ANNEX 1: LAND REQUIREMENTS FOR BIOFUELS ................................................................ 64 ANNEX 2: SUMMARY TABLE OF STUDIES REVIEWED .......................................................... 66 4 EXECUTIVE SUMMARY Biofuel mandates are being used in many parts of the world to encourage the substitution of fossil fuels in transport uses by renewable energy. Brazil has long had an extensive programme of producing bioethanol from cane sugar, the USA has massively expanded production of ethanol from corn and the EU’s Renewable Energy Directive has led to a scale up in EU biofuel use, most notably of rapeseed biodiesel. The European Commission will produce a report reviewing the social impacts of EU biofuel policy by the end of 2012. To support Action Aid in its participation in the debate about the future of EU biofuels policy, taking into account the social dimension, this report was commissioned to provide an independent review of the evidence base on the link between policy-driven EU biofuels demand and global agricultural prices – in particular through reviewing a selection of modelling based studies. The next step in the causal chain from agricultural prices to food price impacts, ie prices to consumers on the ground, whilst highly important lies outside the scope of the study. The 10 per cent target for the use of renewable energy in transport set in the EU Renewable Energy Directive is anticipated to lead to a tripling of biofuel use in the EU in 2020 compared to 2008 levels, according to the National Renewable Energy Action Plans that all Member States have been required to produce. The plans confirm that the current dominance of biodiesel over ethanol in the European biofuel market will continue. The EU’s target predominantly will be met by first-generation biofuels produced from traditional food and feed crops, translating into a significant additional demand for these crops. It is clear that this additional demand, alongside the growing global demand for food and biofuel demand elsewhere will increase agricultural commodity prices but by how much is the subject of continued debate. The uncertainty about the extent of price increases arises from a range of factors, including the prevalent interactions between different crops and livestock markets and between world regions and from the responses to price signals by consumers and producers. Yield increases stimulated by higher output prices is often suggested as a factor with the potential to mitigate price increases; another may be related to the rise of protein by-products as animal feed. The complexities of interacting factors can only be captured in reasonably sophisticated economic models and we have reviewed a range of both partial and general equilibrium models for this report. Nonetheless, because of the wide variety in the context, scope and methodology of models used to analyse the effects of biofuel mandates, the results of analyses of the price effects range substantially. Consequently, it is often extremely difficult to draw comparisons between models. In those modelling studies focusing on the impacts of EU (as opposed to global) biofuel policies, the most significant price increases are projected for oilseeds and vegetable oils, with increases in world prices by 2020 typically ranging between 8 to 20 and 5 to 36 per cent, respectively (see table below). Wheat prices are projected to increase by between 1 and 13 per cent and the majority of studies project increases of cereal / maize prices of up to 8 per cent and of sugar prices of up to 2 per cent. One model (ESIM) projects these increases to be 22 and 21 per cent, respectively. Many of the drivers of differences in results 5 are those that have been under scrutiny in the indirect land use change debate. Consequently, the studies at the forefront in that debate can be expected to deliver the most robust results with regard to agricultural market impacts. This is most notably the IFPRI study, which projects increases in world rapeseed prices (anticipated to be the most significant feedstock for EU biofuel use in 2020) of around 11 per cent (Laborde, 2011). While looking at studies that model global biofuel policies does not allow singling out the EU policy impact, it is in some way a more complete scenario design, given EU policies in the real world do not take place in isolation but other countries have in place biofuel policies as well. At least some of the global studies estimate substantially higher price effects for ethanol crops such as wheat, other cereals and sugarcane. Table: Summary of price effects per feedstock Feedstock (group) Range of price effects Commentary Studies that focus on the effects of EU biofuel policy Oilseeds 8 – 20% Vegetable oils 1 – 36% Oilseeds 9 – 20% Cereals / maize 1 – 22% The ESIM model (Blanco Fonseca et al, 2010) projects an increase in maize prices of 22%. The remaining studies project increases in maize or cereal prices of ≤8% Wheat 1 – 13% Sugar (cane/beet) 1 – 21% The ESIM model (Blanco Fonseca et al, 2010) projects an increase in sugar prices of 21%. The remaining three models reporting results for sugar project price increases of ≤2% Studies that analyse the impacts of global/multi-regional biofuel mandates Oilseeds 2 – 7% Vegetable oils 35% OECD (2008) is the only ‘global’ study providing a figure for vegetable oils Cereals / maize 1 – 35% Wheat 1 – 8% Sugar (cane/beet) ~10% Timilsina et al (2010) is the only ‘global’ study providing a figure for sugar, 9.2 or 11.6% depending on the scenario Source and notes: see section 5.3 In terms of options to deal with biofuel induced price increases: a reduction, or even abolition, of policy induced biofuel demand will reduce or prevent altogether agricultural market and hence price impacts due to biofuel policy. Depending on the development of oil and therefore fossil fuel prices on the one hand and feedstock prices on the other, the market might still drive increased biofuel use whenever it is price competitive with fossil fuels, rendering policy changes less or altogether ineffective. Unlike in the USA, where biofuels are promoted by a rigid mandate laying out annual targets for biofuel volumes consumed, EU biofuel targets are less specific, arising de facto from a wider renewable energy target. At present there is at least an element of flexibility afforded to Member 6 States in terms of how they choose to go about meeting the target. They are obliged to deliver a certain proportion of renewable energy in transport rather than to meet specific target volumes of biofuels. Consequently, policy can be adjusted in different ways – either by altering the target for renewables, setting more specific targets for different forms of renewable energy (eg from wastes), increasing the efficiency of transport vehicles etc. For example, EU policy that would encourage Member States to increase support for advanced biofuels produced from forestry and agricultural residues as well as renewable electricity while scaling back support for conventional biofuels produced from food and feed crops, would be a way of reducing pressure on agricultural markets. These alternative options for promoting renewable energy and increasing policy flexibility need further detailed consideration. More clarification could usefully be provided by the Commission regarding the scope of Member State autonomy to adapt their policies up to 2020. This review assessed the impacts of biofuel use on agricultural commodity prices. The European Commission, as part of its reporting requirements in 2012, is required to judge the impacts of biofuels on food prices. This further step increases the complexity of the analysis substantially. Food supply chains involve an extremely wide range of plant and animal products with varying degrees of processing of agricultural commodities and varying proportions of staple foodstuffs in the diet. The vulnerability of consumers across the world to food price increases differs markedly between countries and across households, depending inter alia on income levels, household composition, and on the household status as net consumers or producers of agricultural and food stuffs. We are not aware of studies that use multi-household models, which would produce a better understanding of how commodity price rises induced by biofuels are transmitted to different population groups and allowing more solid estimates of the welfare impacts of biofuel policy. This gap should be closed in order to provide decision makers with a more complete evidence base feeding into the political review processes ongoing in 2012. 7 1 INTRODUCTION In 2012, the European Commission (EC) will produce a report reviewing the social impacts of EU biofuel policy. Under Article 17 (5) of the Renewable Energy Directive (RED)1, the EC is obliged to conduct this review into the impacts on 1) food affordability and availability; 2) land rights; 3) whether producer countries have implemented various International Labour Organisation conventions and 4) ‘wider development issues’. To support Action Aid in its participation in the debate about the future of EU level biofuels policy, it commissioned IEEP to provide an independent review of the evidence base on the link between policy driven EU biofuels demand and global agricultural prices in particular through reviewing a selection of modelling based studies. The next step in the causal chain from agricultural prices to food price impacts, ie prices to consumers on the ground, whilst highly important lies outside the scope of the study. In Section 5 we provide a brief discussion of the complexity of the relationship between global agricultural and food prices. This report is structured as follows: Section 2 gives a brief overview of EU policy driving biofuel demand and sets out what is currently known about the likely scale and nature of this demand to 2020. Section 3 outlines the major concerns and uncertainties in the discussions on biofuel use and agricultural and food price impacts or, in other words, the ‘food versus fuel’ debate. To separately analyse the effects of biofuel policy we have to understand the wider context of the high volatility in agricultural commodity prices experienced in recent years. Section 4 gives an overview of some of the most important factors shaping agricultural commodity prices. Section 5 reviews the results of a selection of modelling based studies examining the impacts of EU and global biofuel policies on agricultural markets and prices. Section 6 spells out some implications that might be drawn for policy on the basis of the modelling studies. Section 7 provides a brief conclusion. 1 Directive 2009/28/EC of the European Parliament and of the Council of 23 April 2009 on the promotion of the use of energy from renewable sources and amending and subsequently repealing Directives 2001/77/EC and 2003/30/EC. 8 2 EU POLICY DRIVING BIOFUELS DEMAND AND OUTLOOK FOR THIS DEMAND TO 2020 In this section we briefly summarise the main dimensions of EU policy driving biofuels demand and provide an outlook for this demand to 2020 in terms of the overall scale of demand, as well as the nature of demand (ie what kind of crops will be used). Biofuel use was first promoted in the EU by the 2003 ‘biofuel directive’2, stipulating Box 1: First- and second-generation biofuels an indicative target for EU Member States Biofuels can replace conventional diesel (biodiesel) of 5.75 per cent biofuel use in road and petrol (bioethanol) as transport fuels. Socalled first-generation biofuels are derived from transport fuels by 2010. There was limited food and feed crops. The crushing of different oil progress towards this target in many crops including rapeseed, soy, palm and jatropha Member States, leading to the (the latter not used for food or feed purposes) introduction in 2009 of the new binding yields oils that are transformed into biodiesel target in the Renewable Energy Directive through transesterification. Bioethanol is constituted a significant further step. The produced by fermenting the sugar components Renewable Energy Directive calls for an derived from sugar and starchy crops such as EU-wide 20 per cent renewable energy sugar cane and beet, wheat, rye and maize. share in gross final energy consumption to Advanced or second-generation technologies are be reached by 2020. Apart from this being developed that convert lingo-cellulosic overall target, the RED mandates a 10 per material (including woody crops and forest and agricultural residues) into biofuel. These offer the cent renewable energy share in transport possibility of utilising biomass which is less directly to be met in each Member State by 2020. competitive for food and feed, and also capable of According to the National Renewable yielding a much higher energy return. Energy Action Plans (NREAPs) which the Directive requires governments to prepare around 90 per cent of the transport target will be met by first-generation biofuels in 2020. 2.1 What is the current scale of EU demand for biofuels and how is this likely to develop to 2020? Figure 1 illustrates the development of EU biofuel consumption over the last decade showing the importance of EU policy in triggering uptake in the more recent years. To give an idea about the breakdown of the aggregate position for the EU in Figure 1: the biggest biofuel consuming countries in 2010 were (in descending order) Germany, France, Spain, Italy and the UK. Biodiesel accounted for over three quarters of 2010 EU biofuel use. Germany, France and Spain lead EU biodiesel production in 2010 (EUROBSERV’ER, 2011). EU bioethanol production is dominated by France, Germany and Spain (2009 data) 3. 2 Directive 2003/30/EC of the European Parliament and of the Council of 8 May 2003 on the promotion of the use of biofuels or other renewable fuels for transport. 3 http://www.biofuels-platform.ch/en/infos/eu-bioethanol.php 9 Figure 1. Development of biofuel consumption for transport in the EU 27, 2000 to 2010 (in mtoe) Source: EUROBSERV’ER, 2011, p74 An outlook for future EU biofuel consumption is contained in the compendium of National Renewable Energy Action Plans (NREAPs) prepared by Member States4. Bowyer (2011) has analysed the Member States’ NREAPs yielding the following observations, summarised in Table 15. In order to meet the 10 per cent target:  The 27 EU Member States will consume 29.6 Mtoe of biofuels in 2020. This translates into an increase in biofuel use between 2008 and 2020 of 19.5 Mtoe.  The majority will be conventional first-generation biofuels, making up about 92 per cent of total predicted biofuel use or 27.3 Mtoe in 2020, equating to 8.8 per cent of the total energy in transport. Advanced or second-generation biofuels will not gain an important market share and are anticipated to account for only 0.7 per cent (2.1 Mtoe) of total energy in transport by 2020.  Out of first-generation biofuels, 72 per cent are anticipated to be biodiesel and 28 per cent bioethanol; anticipated imports amount to 44 per cent of bioethanol and 36 per cent of biodiesel used in 2020 (see Table 1). Actual imported levels of feedstock could be even higher as it is unclear whether the figures for anticipated imports 4 Member States subsequently are required to report on progress towards the binding renewable energy targets on a biannual basis; the first of these reports were due at the end of 2011. These can give an updated picture of the amount of biofuels Member State anticipate using in 2020. At the time of writing, not all reports had been submitted yet and it was beyond this study to analyse those already submitted. 5 A detailed analysis of the NREAPs by Beurskens et al (2011) for the Commission yields additional information on biofuel pathways to 2020 in the different Member States (see tables on projected total bioethanol/bioETBE and biodiesel use in renewable transport over 2005-2020 on p178 and p184, respectively). 10 reported in the NREAPs also include imported feedstock for ‘domestic’ processing into biofuels or only refer to processed biofuels. Table 1: The projected composition of EU biofuel consumption in 2020 according to NREAPs Expected quantities of Total EU biofuels in 2020 Mtoe Consumption 29.6 Biodiesel Mtoe 21.3 Imports 11.3 7.7 Production 18.3 13.7 Bioethanol share Mtoe share 72% of total 8.3 28% of total biofuels biofuels 36% of 3.6 44% of ethanol biodiesel cons cons 74.4% of total 4.7 25.6% of total biofuels biofuels Source: Own compilation based on Bowyer (2011) One question arising in this context is how EU Member States have derived their NREAP estimates, ie whether these are targets or predicted behaviours given certain signals and other assumptions and how accurate the estimates are expected to be. It seems reasonable to expect diverse answers to these questions across the different Member States, depending on the amount of resources, including modelling techniques, national authorities put into the elaboration of their NREAPs. NREAP estimates should reflect MS policies in place, including differentiated support for first-generation versus advanced biofuels versus renewable electricity in transport. This topic would merit further examination 6. 2.2 What kind of agricultural crops are currently used to meet EU biofuel demand and how is this likely to develop to 2020? Tables 2 and 3 below show the shares of feedstocks for both EU biodiesel and bioethanol consumption in 2008 and 2020, respectively. For 2008, figures compiled under the ‘Biofuel Baseline 2008’ project by Ecofys et al (2011) have been used. Projections for 2020 are derived from one of the ILUC modelling studies prepared for the European Commission (Laborde, 2011). Currently, rapeseed/oil dominates the market of biodiesel destined for EU consumption, amounting to over half of the total feedstock used. This is followed by soybean and palm oil with similar shares and a few feedstocks of minor importance. The resource base is more diversified for ethanol, with sugar cane and beet and wheat dominating current markets Moving to projected feedstock shares in 2020 (table 3): rapeseed continues to dominate the biodiesel market, accounting for 57 per cent of the feedstock in 2020. Palm oil makes up another fourth of all feedstock used, with the remainder from soy and to a lesser extent sunflower. The market for ethanol destined for EU consumption is projected to be more heavily reliant on sugar cane in 2020 as opposed to 2008. Sugar cane is projected to account for almost half of all feedstock. This is followed by wheat, sugar beet and maize. These 6 Work under the Biomass Futures project with the energy sector model RESolve contributes to this: www.biomassfutures.eu. 11 projections are derived from the IFPRI study (Laborde, 2011) whose scenarios are in line with the shares of and absolute volumes of biodiesel and ethanol Member States anticipate using in 2020. Taken together with accounting for observed usage of feedstocks in 2008 in the baseline, the 2020 figures should give a fairly good picture of the biofuel market in 2020 and the relative importance of different feedstocks. But of course the figures are not free from uncertainty and like any other results derived from the model depend on factors such as assumed (relative) crop yield developments and future crop demand from other sectors. Table 2: Shares of feedstock for biofuels consumed in the EU in 2008 Biodiesel % share Ethanol % share Rapeseed/oil Soybean/oil Palm oil Tallow RVO Sunflower/oil 55 19 16 5 4 2 Sugar beet Sugar cane Wheat Maize Wine Rye Barley Triticale Other 23 23 21 13 8 3 1 0.4 8 Source: own calculation based on Ecofys et al, 2011, Tables 14 and 15 Note: RVO is recycled vegetable oil. Table 3: Shares of feedstock for biofuels consumed in the EU in 2020 Biodiesel % share Ethanol % share Palm Oil Rapeseed Soy Sunflower 24 57 15 6 Maize Sugar Beet Sugar Cane Wheat 14 18 46 21 Source: own calculation based on Laborde, 2011, Table 3 Note: Percentages from Laborde’s Table 3 are recalculated taking the setting of biodiesel=100% and all ethanol=100% (instead of all biofuel=100% as in the original table). Percentages for biodiesel feedstock yield slightly over 100% when summed, due to rounding in the original table. 12 3 THE FOOD VERSUS FUEL DEBATE IN THE EU: A BRIEF REVIEW OF SOME OF THE MAIN DIMENSIONS 3.1 Why the Concern? EU mandates and policy support for biofuels, and for biomass use for heat and electricity, generate additional demand for feedstocks and therefore for land on which to grow them, with consequences for land use both in Europe and globally (given the international nature of commodity markets). This situation gives rise to a series of unintended impacts and therefore raises doubts about the sustainability of the transport target, in particular whether it actually contributes to reducing GHG emissions from transport, a key underlying rationale for the whole policy. In this context, 2010 and 2011 have seen an intense discussion about the indirect land use change (ILUC) impacts of EU biofuel use 7. While this discussion continues, the year 2012 increasingly will bring the social impacts of biofuel use on to the agenda given the Commission’s reporting obligations. Already the impacts of biofuels on food prices has been fiercely debated in recent years particularly in the light of the agricultural commodity price spikes in 2007/2008 and again more recently in 2010/2011. The demands placed on global land and food resources are already anticipated to rise in the coming decades due to a growing global population, income growth and continuing expansion in meat consumption. At the same time production of many crops is threatened by the consequences of climate change (see section 4). The additional pressure applied by a further sector, ie energy supply attempting to regain access to commodities and land to meet its needs will inevitably drive up the price of agricultural raw materials. This means that among others the cost of grains for different users such as the flour millers, brewers and animal feed compounders is raised. In turn, they will pass on their higher costs to final consumers of bread and other bakery products, drinks and other products and to livestock producers which will, in turn, raise meat and milk prices too. The outcome is that retail prices of food rise compared to where they would have been in the absence of the biofuels policies. The extent of this depends on the importance of the raw material costs in final product prices and the competitiveness of the food processing and retailing sectors. The impact of increases in food prices on individual households depends very much on their composition and income. As spelled out in more detail in section 5 (Box 4), the share of income spent on food varies widely between low- and high-income households and is much higher in the former. Because of this, increases in food prices will have a lower impact on overall welfare and non-food expenditure in high-income groups. It may lead to reductions in saving rates or in the consumption of other, non-food goods or may lead to a switch from premium to discount food brands. In low-income groups, however, food price increases can lead to reductions in food intake or to a switch towards cheaper and less varied diets, risking malnutrition and/or undernourishment. Also, expenditure on schooling or health services may be reduced. The uneven effect of biofuel induced commodity price increases on lowand high-income groups becomes more pronounced due to the fact that the former rely more on staple foods which embody little processing. Therefore, sensitivity to any increase 7 Some of the prominent studies addressing indirect land use change from EU biofuel use are: Bowyer (2011), Laborde (2011), Blanco Fonseca et al (2010) and Edwards et al (2010). 13 in commodity prices will be much greater in lower income families, whereas the diet of higher income groups primarily consists of processed food that has passed through a longer value-adding chain, so that commodity price increases have much smaller impact on retail prices. In short, policies which raise agricultural commodity prices, such as biofuel mandates, have a differentially larger impact on poor consumers. 3.2 Controversy over the fuel and food interaction Central to the question of how the potential use of feedstocks for biofuels will impact on food prices is the extent of the growth in biomass production and the additional demand on land needed to enhance energy supply. Unfortunately, there is little agreement on the precise scale of additional land use demands anticipated from biofuel production. The most recent modelling results from IFPRI (Laborde, 2011) suggest global land use change generated by the increase in EU demand for biofuels associated with the RED would be between 1.73 and 1.87 Million hectares of additional cropland area 8. This is just one illustration; other analyses have identified significantly larger and smaller estimates of the extent of land use change (see Edwards et al, 2010, for a discussion of the most important drivers of differences in results). The consequences for agricultural commodity (and ultimately food) prices of this diversity are discussed in detail within the next sections. The primary sources of the disparities in estimates of the extent of biofuel impact on land and feedstock resources are summarised below:  Differences in assumptions regarding feedstock usage to produce fuels, ie different crops yield dramatically different volumes of biofuel from one hectare of land. They range from an estimated 5470 litre/hectare (l/ha) for ethanol from sugarcane in Brazil and 4700 l/ha for biodiesel from Malaysian oil palm to 550 l/ha for biodiesel from US soy and 950 l/ha for wheat ethanol (FAO, 2008; see also Annex 1).  Variable consideration of land demands and competition impacts associated with second-generation biofuels based on lingo-cellulosic material, combined with different assumptions regarding their market penetration in the medium to long term. It was originally assumed that the RED would drive expansion in these supplies ahead of 2020. However, analysis of Member State plans anticipates only 8 per cent of total biofuel demand by 2020 being delivered from such fuels, and moreover there remain uncertainties regarding the impact of wood fuel resources in terms of land and climate (Zanchi et al, 2010).  Most of the growth in agricultural production in the twentieth century has come from increases in yields rather than an increase in agricultural area. It expected that this will remain true for the 21st Century. So a critical variable in explaining the impact on prices of a rise in the demand for food crops will be yield assumptions. These assumptions will differ between analyses. Yield growth has certainly slowed in the last decade for many crops and regions, however this in turn is highly dependent on some policy factors, especially agricultural research and development 8 The average of these estimates equates to 1.1 per cent of EU Utilised Agricultural Area or 1.7 per cent of EU arable area (see Annex 1 for the sources of these total EU areas). 14     expenditures. The recent food price scares have stimulated policy change to increase publicly funded agricultural R&D in many regions, including the EU (see Foresight, 2011). Whether biofuels feedstock suppliers are directly competing for the same crops or varieties as food stuffs ie wheat varieties that are best suited for distilling, hence conversion to bioethanol, differ from those recommended for milling and flour production, or those often grown for animal feed (HGCA, 2010 and Nabim, 2012). There is, however, a question as to whether this would in reality limit the impact on wheat prices given that differing varieties of wheat are still digestible and are fit and used for human consumption in developing countries, it is simply that they are bred to meet different specialist needs in richer nations. The extent to which arable land use will expand in order to deliver additional demand generated by biofuels. Expansion in crop land could be ameliorated by developments in the use of by-products, particularly for animal feed, and the extent to which intensification of agricultural activities and yield increases for given crops are viable (see discussion below). The ability to deliver efficiency savings throughout the agricultural and food supply chain ie reducing waste in production and consumption phases, hence freeing up resources. The EU continues to debate whether to take action on food waste, which is anticipated to rise (if unchecked) to 40 per cent by 2020 in Europe (European Commission, 2011). Differing assumptions regarding the consequences of any expansion in the area of cropped land. A key question under debate is where would this expansion take place, in particular to what extent would this make use of ‘degraded’ lands, abandoned crop lands or what has become known as ‘idle’ land. The extent to which these categories of land are ‘available’ for use and economically productive has been questioned. For example, it has been reported that the Indian government has allocated 400,000 hectares of wasteland for jatropha cultivation to deliver biodiesel. However, these lands are often classified as Common Property Resources (CPR) and utilised for food, fuel and materials. Analysis has indicated that CPR contribute up to a quarter of poor household incomes with many of the poorest households dependent upon them (Oxfam, 2008). Moreover, while production of some biofuel feedstocks may be possible on degraded lands, inherent limitations mean such activities cannot compete economically with feedstocks produced on highly productive lands (FAO, 2008) To illustrate the differences in the assumptions made in assessing the potential for biomass resources for energy, Table 4 offers an overview adapted from a recent study. This analysis by the UKERC (Slade et al, 2011) brings together key studies of global biomass potential for energy use illustrating the extensive range anticipated in terms of viable energy outputs from all forms of biomass. It also illustrates the different types of preconditions applied which explains this variation, ie the low band of estimates would rely on a combination of the use of residues, wastes and energy crops, moving from low to mid ranges implies a dominant role for energy crops and significant assumptions concerning changes to the agricultural system. The UKERC analysis, however, highlights three factors that are important in all studies when determining the contribution of biomass to energy and associated consequences for other sectors. These are: 1) the availability of land; 2) the 15 productivity of the biomass grown on the land, ie the yield based on production conditions and conversion efficiency to biofuel products; and 3) the extent of competition from alternate uses of land, biomass and biomass waste materials. Table 4: Exploring the variation in estimated biomass potential for energy Global biomass potential (EJ9) High band – over 600EJ Essential Pre-conditions    Upper mid- over 300 to 600 EJ     Lower mid – over 100 to 300 EJ    Low – up to 100 EJ     Crop yields outpace demand: >2.5Gha10 land for energy crops (includes >1.3Gha good agricultural land) High or very high input farming, limited, and landless, animal production with dung recovery Low population (<9bn)Vegetarian diet OR extensive deforestation / conversion to managed forestry All residues a (< 100EJ constrained use, not included in all studies) Crop yields outpace demand: >1.5Gha land for energy crops (includes >1Gha good agricultural land) Low population OR vegetarian diet OR extensive deforestation / conversion to managed forestry All residues (< 100EJ constrained use, not included in all studies) ie agricultural, forestry and wastes Crop yields outpace demand: >1.5Gha land for energy crops (includes >1Gha good agricultural land) Low population OR vegetarian diet OR extensive deforestation / conversion to managed forestry All residues (< 100EJ constrained use, not included in all studies) ie agricultural, forestry and wastes Little or no land for energy crops (<0.4Gha total) High meat diet OR low input agriculture Limited expansion of cropland area AND high level of environmental protection Agricultural residues (<30EJ, not included in all studies) Source: adapted from Slade et al for UKERC, 2011, diagram page 64 Note: summary of the literature produced by UKERC surrounding the question of the extent of global biomass potential and the different pre-conditions that have to assumed in order to deliver different levels of energy supply. This illustrates that any expansion in bioenergy use implies trade-offs and that such shifts do not operate in a vacuum. 3.3 Determining the extent of biofuel land demands generated by the EU mandate – exploring yield, intensification and use of by-products Fundamentally, the question of increased biofuel production impact on food relates to how easily current agricultural production can be expanded and in so doing, how efficiently the outputs can be used to meet multiple demands for food, feed and fuel. Expanding the area of agricultural land presents challenges in terms of environmental impacts; biofuels are in most cases promoted to help deliver greenhouse gas savings from transport. Hence it is necessary to minimise carbon dioxide emissions associated with land use change. Therefore, 9 Ej – Exajoule – 1018 Joules ie a measure of energy available 10 Gha – Global Hectares - The global hectare is a measurement of biocapacity of the entire earth. One global hectare is a measurement of the average biocapacity of all hectare measurements and biologically productive areas on the planet earth. 16 much of the debate has focused on the extent to which this can be minimised through the more effective use of existing resources, ie through increasing yields on existing land, intensifying production and putting by-products of biofuel production to use as animal feeds. It is argued that if more effective use can be made of existing resources land use change and food price consequences associated with expanded use of biofuels could be limited. 3.3.1 Turning by-products into usable co-products The extraction of the energy content of wheat and maize and the oil from rapeseed and other oilseeds leaves an important protein by-product which is utilised in the animal feed compounding industry. In turn, this new source of animal protein can displace some of the need to grow protein crops domestically or import the protein from abroad. Different models of the kind examined in Section 5 will have incorporated this animal protein effect to different extents. As of 2007, the EU livestock and poultry industries were consuming over 50 million tonnes of oilseed meal per annum, approximately 65 per cent of this was soybean meal with the remainder supplied primarily by rapeseed meal (25 per cent) and sunflower seed meal. Feed use is anticipated to expand to approximately 55 Million tonnes by 2020 (EC DG AGRI, 2011b). Analysis to date has focused on the ability of co-products to replace imports of soy based feeds, reducing overall demand for soy associated with animal feed. The main coproducts are from the domestic production of wheat based bioethanol in the form of dried distillers grain with solubles (known as DDGS) and production of rapeseed in the from of rapemeal and glycerine 11. DDGS from corn ethanol production is used extensively in animal feed, particularly in the US, however, the use of DDGS from wheat has been less extensive in Europe. The Gallagher review (Renewable Fuels Agency, 2008) estimated that a greater supply and use of protein rich biofuel by-products could potentially lead to fewer crops being grown specifically for animal feed. This was considered particularly valuable, as protein crops have lower yields compared to cereals, meaning they require a relatively large land area in comparison. Analysis by CE Delft (Kampman, 2008) for the review estimated net land requirements per tonne of biofuel could be reduced by 60 to 81 per cent by making full use of this potential feed displacement effect. However, such displacement relies on a number of preconditions. The price of such by-products must be lower than for traditional feeds in order to promote a change from the status quo. This is because fundamental questions remain regarding the substitutability of such by-products, given that the extent and nature of the protein differs from traditional feeds. By-products from biodiesel in particular ie oil seed meals and glycerine, also can be potentially recycled to provide energy for the processing of biofuels, hence reducing the direct emissions from the production of the fuel. This offers a compelling competing use for such by-products. 11 DDGS is a protein rich by-product of wheat ethanol production with approximately 0.3kg/kg produced. Rapeseed meal is protein rich and produced at a level of approximately 0.5kg/kg with glycerine produced at approximately 0.035kg/kg from rapeseed oil esterification. 17 Analysis for the pig (Jagger, 2008) and poultry (Acamovic et al, 2008) sectors in the UK has shown limitations on the ability to utilise DDGS from wheat, rapemeal and glycerine. Significant differences in terms of the nutrient content of DDGS have been noted in terms of the extent, quality and digestibility of the amino acids present. In addition, DDGS from wheat contains high levels of fibre, which may limit an animal’s ability to take on sufficient quantities of feed. Only limited proportions of DDGS are, therefore, recommended within the feed mix. In the case of rapemeal, high levels of glucosinolates can be present, these compounds are known to have negative health consequences for animals consuming it at high volumes; the same holds for residues of methanol and salts (sodium or potassium chloride), likely to be present in biodiesel by-products. In addition, the metabolism of glycerol requires the activation of a specific enzyme and above certain thresholds of intake it is simply excreted rather than utilised by the animal. 3.3.2 Increasing Yield and the potential for agricultural intensification Can we produce more crops on the same agricultural area, hence limiting the need to expand the area of arable land to deliver biofuel demand? In the past 40-50 years increases in production have largely been the result of higher yields from crops as a result of developments in crop breeding, in plant protection, weed and disease control and in mechanisation, rather than from expanded areas of agricultural land. For example, in the EU the area of agricultural land has remained relatively stable. However, on average crop yields have increased by around 29 per cent12. The Gallagher review estimated that high and low yield improvement scenarios result in approximately ±10% influence on total land demand for biofuels (Renewable Fuels Agency, 2008). There is considered to be the potential to enhance crop yields, including within the range of feedstocks used for biofuel production – see figure 2. However, this potential is highly variable depending on location and determined by historic investment in the agricultural potential, ability to support research and development into yield expansion, the willingness of society and especially opinion influencers to accept new technologies in agricultural production, and the acceptability of the environmental impacts of increasing agricultural productivity. Analysis for the World Bank (2011) has combined assessments of potential for yield increase with an estimate of a country or region’s ability to expand agricultural land. This provides a typology of the likely impact of expanded demand for agricultural commodities across the globe, given that EU biofuel demands will generate a footprint globally. Four different types of global regions are identified based on their projected ability to increase yield and/or increase the area of agricultural land. Given some uncertainties such as the precise availability of ‘suitable’ land given other uses and demand, this highlights some broad patterns, for example that there is little potential for expansion in production either based on yield or agricultural area in countries such as China, Vietnam or Western Europe. However, significant potential based on purely yield increase in countries such as Kenya, Malawi, Ukraine, Central America etc is noted (see Box 2). The stimulation of yield increases, rather than the expansion of agricultural land, in response to the additional demands from biofuels should not, however, be assumed. 12 Based on IEEP et al (unpublished), Interim report for the DG Environment Study – Land as an Environmental Resource, project code ENV.B.1/ETU/2011/0029. 18 Critically, the Gallagher Review (Renewable Fuels Agency, 2008) noted that advances in yield are dependent on three drivers:  Public investment in research and infrastructure;  Supportive legislative and trade agreements; and  Private investment supported by profitability of production – which depend in turn on agricultural product and input prices. The FAO (2008), and others, believe that biofuels could provide a mechanism for reinvigorating investment in agriculture, in particular research and development. Analysis has, however, shown that crop productivity is higher in high-income countries than those with low or middle income. It is also telling that despite a significantly lower baseline in terms of productivity between 1992 and 2002, yield increases in low and middle-income countries were only marginally higher than in high-income countries. While biofuels could in principle stimulate yield increase, in practice this will be contingent on appropriate investments (UNEP, 2009). Figure 2. Reviewing the potential for yield increases for four key biofuel feedstocks Source: UNEP, 2009, p74 19 Box 2: Summarising the potential for agricultural expansion globally and providing a typology for the nature of this expansion Type 1: Little Land for Expansion, Low Yield Gap This group includes Asian countries with high population density, such as China, Vietnam, Malaysia, the Republic of Korea, and Japan, Western European countries, and some countries in the Middle East and North Africa with limited land suitable for rainfed production, such as the Arab Republic of Egypt and Jordan Type 2: Suitable Land Available, Low Yield Gap This group includes countries where land with reasonably well-defined property rights and where infrastructure access is fairly abundant and technology advanced, mainly in Latin America (Argentina, Uruguay, and central Brazil) and Eastern Europe Type 3: Little Land Available, High Yield Gap This group includes the majority of developing countries, including relatively densely populated areas in highland Ethiopia, Kenya, Malawi, the Philippines, Ukraine, Cambodia, and Central American countries (such as El Salvador) with limited land availability as well as Middle Eastern and North African countries where water availability constrains the expansion of agricultural production. Although there is little land available, large numbers of smallholders may be locked into poverty because the area cultivated remains far below the yield potential. Type 4: Suitable Land Available, High Yield Gap This group includes sparsely populated countries—such as the Democratic Republic of Congo, Mozambique, Sudan, Tanzania, and Zambia—with large tracts of land suitable for rainfed cultivation (in areas of sufficient precipitation) but also a large portion of smallholders who only achieve a fraction of potential productivity (figure 3.5). In some cases, such as Sudan, these areas are located in areas with political tensions and dispute. Labor supply often constrains expansion by smallholders, implying that not all potentially suitable land is used for crop production. Source: World Bank, 2011, page xxxvi 3.3.3 In summary The divisions within the ‘food-fuel debate’ lie partly in different interpretations of areas of genuine uncertainty and partly in the interests and positions of the participants. Clearly 20 biofuel policies will add to other factors which have pushed up demand for certain commodities and there will be subsequent impacts on land use, but this will occur against a background of changes in market prices and national policies, giving rise to impacts which will vary considerably between countries and social groups within them. Generic effects at a global level are only one concern – local impacts are another. 21 4 THE ROLE OF VARIOUS KEY FACTORS IN DETERMINING AGRICULTURAL COMMODITY PRICES AND THEIR VOLATILITY The purpose of this section is to give an overview of some of the important factors that influence agricultural commodity prices and commodity price volatility. This is to prepare the ground for the analysis in section 5 which examines what we know about the influence of policy driven EU demand for biofuels on global agricultural commodity prices. The purpose is thus to enable the reader to understand the ‘normal’ dynamics of agricultural commodity prices as a background to interpreting the analysis in section 5. 4.1 A little historical context There is nothing new about using biomass to provide energy for transport. Indeed until one century ago, practically all transport ‘fuel’, apart from steam trains and ships, was the forage and grains fed to horses (or other draft animals). In many parts of the world this is still the case. Huge areas of land were liberated for food production in developed countries during the 20th century as general transport, as well as agricultural traction, switched from horses to utilise the internal combustion engine and fossil fuels. This is one reason why real agricultural commodity prices fell throughout the 20th century despite unprecedented population and economic growth and diet change. It is still the case that many developing countries use animals for transport and agricultural traction. Equally, traditional biomass energy in the form of wood, charcoal and animal manure continues to play an important role as a cooking and heating fuel in the developing world, making up around 90 per cent of all bioenergy use globally (for instance WBGU, 2009). It is the development in more recent years and decades in industrialised and newly industrialised (most notably Brazil) countries that have started producing ‘modern’ forms of biofuels and bioenergy to displace fossil fuels in the internal combustion engines of road vehicles, as well as in electricity and heat generation, that represents a paradigm shift. These novel (at least in the sense of their scale) uses of agricultural biomass to produce energy constitute potentially a significant additional demand for agricultural commodities. This outward shift in demand for agricultural commodities must be expected to have some impact in raising agricultural commodity prices above where they would have been before the new energy demand came on stream. The question is therefore not whether there is an impact on agricultural commodity prices but how big it will be. These questions lie at the core of the food versus fuel debate, introduced in the previous section, that became highly publicised in response to the 2007-08 agricultural price spike. As can be seen from Figure 3, this spike was not the end of the story. In the wake of the global financial and economic crisis taking off in 2008 and due to the strong supply response to the 2007-08 prices there was a surge in production with above-average harvests in 2008. Agricultural commodity prices dropped steeply from their 2007-08 highs. But the year 201011 saw a renewed price spike. The literature on agricultural commodity prices and their determinants has soared in response to these recent experiences. Any discussion on the role of the key agricultural market drivers is bound to refer to recent experiences, because the subsequent analyses provide useful explanations assessing the relative importance of 22 different factors. One outcome of the compendium of analyses is that it is by now broadly established that biofuel demand was one amongst many factors explaining these spikes 13. Box 3: The importance of price volatility It is the volatility of prices as much, or arguably even more, as the level of prices that causes concern. The FAO et al (2011) work for the G20 focusing on agricultural price volatility bears witness to this fact. The most vulnerable households to high prices are likely to find it even more challenging to find ways of coping with the unpredictable nature of volatile prices. This is an aspect not accounted for in the models reviewed in the next section that are either only able to predict price changes in some target year, eg 2020, or include linear projections over time. In reality, agricultural markets will hardly follow such smooth paths towards reaching the higher price level, but will rather experience volatility that is difficult to predict. This unpredictability also makes it more difficult to adopt mitigating measures to compensate the most vulnerable for higher agricultural and food prices, for instance by means of emergency food aid. And, very importantly, the high prices create an environment of uncertainty not favourable for stimulating investment in agricultural development and hence increasing supply. 4.2 Key factors influencing global agricultural commodity prices Understanding the dynamics of global agricultural commodity prices is complex as they involve a number of interlinked processes at different temporal and spatial scales. Here we simply provide an overview of some of the key factors to help understanding of the studies which model the specific contribution of biofuels policy. The principal factors in the recent commodity price spikes were:  Population growth  Income growth and associated changes in diets  Weather conditions  Changing climate  Technological advances  Crude oil and other energy prices  Exchange rate movements  Changes in the stock levels of agricultural commodities  Trade policy  Speculation and, more generally, financial market activity, and  Biofuels policies These will be considered first through their impacts on demand, then on supply, and then we consider other influences and the importance of price volatility as well as price levels. First we show two depictions of the dramatic price developments in the last decade. 13 A recent analysis conducted by Ecofys et al for the European Commission adds to this discussion. The contribution of rising biofuel consumption in the EU to the 2007-08 cereal price increases is called ‘modest’, while it is shown to be ‘significant in pushing up other food prices, notably prices of oilseeds and vegetable oils’ due to the bigger share of biodiesel production and use (Ecofys et al, 2011, p143). At the same time, the authors note that the increase in global biofuel production in combination with harvest shortfalls (two factors that were found to be ‘mutually reinforcing’), does ‘explain a significant part’ of the 2007-08 price increases (page iv). 23 Figure 3. Development of food and cereal price indices – nominal and real, 1995 - 2011 300 250 200 150 100 50 00 Food Price Index_nom Cereals Price Index_nom Food Price Index_real Cereals Price Index_real Source: http://www.fao.org/worldfoodsituation/wfs-home/foodpricesindex/en/. The real indices are constructed by using the World Bank Manufactures Unit Value Index (MUV). This FAO chart shows how the index of nominal international cereal and food prices had plateaued in the late 1990s, but started showing upward movement in 2006 before increasing more than two and a half-fold by the end of 2007. Following the 2009 slump they once again more than doubled before settling back. The indices in real terms showed lower, though almost as dramatic, changes. Figure 4 below takes a longer perspective comparing the 2007-08 price spikes to the big price spikes of the 20th century, showing the contrasting story between agricultural commodity prices and energy (as well as metal) prices in the price spikes. In the 1950 price spike energy prices were stable. In the mid-1970s, the surge in agricultural prices preceded that in energy prices. The reverse was true in the recent spike. 24 Figure 4. Commodity Price Indices (Real, MUV‐deflated, 2000=100) Source: Baffes and Haniotis, 2010, p27 Note: deflated using the World Bank Manufactures Unit Value Index (MUV) 4.3 Factors influencing demand The principal drivers of growth in food demand are population, incomes, changing diets and biofuels policies. Population growth leads to a sustained increase in demand for food and agricultural commodities. Similarly, income growth, especially of those living below or close to the poverty line, is expected to lead to absolute increases in the demand for food commodities. Furthermore, income growth itself is generally associated with changes in dietary patterns, particularly involving an increase in consumption of livestock products, meat and dairy produce (see Schroeder et al, 2010; Delgado, 2003). Expansion of livestock consumption, in turn, increases the demand for agricultural staples via increased animal feed requirements of energy and protein. The responsiveness of the demand for food commodities and any other goods to changes in disposable income is measured by the income elasticity and this elasticity is considerably higher in developing countries compared to high-income countries14. To these demographic and economic drivers of consumption growth more recently has been added, especially in N America and Europe, the policy driven shift in demand through biofuel policy providing strong incentives for consumption regardless of market prices. Note however that although it has been biofuels policy which has driven their recent expansion, if the trend towards high and rising oil prices persists this could make biofuels competitive with fossil fuels and encourage their expansion even if biofuels policies are phased out. 14 Hertel et al (2008) have compiled income elasticities for 113 world regions as part of the Global Trade Analysis Project (GTAP). Looking at this dataset shows that for most OECD countries the income elasticities for the product category ‘Grain-Crops’ is well below 0.1 whereas it reaches close to 0.7 in least-developed countries (Table 14.5). 25 Looking at the past and anticipated importance of these factors, however, it should be noted that population growth has been slowing in recent decades, from 1.8 per cent over 1970-1990 to 1.3 per cent per annum over 1990-2010 and it is expected to slow further, with global population stabilising and even falling after the middle of this century (HM Government, 2010, quoting UN statistics). Also, according to analysis by the European Commission (EC DG AGRI, 2011a), growth in world demand has slowed down for most commodities in the 1997-2008 period compared to the three preceding 12-year intervals analysed. This pattern holds in particular for wheat, rice, total grains and total feed grains, while there has been (continued) strong growth in palm oil demand of around 9 per cent per annum over 1997-2008. It is further pointed out that both China and India ‘have a history of effective self-sufficiency policies in the production of staple grains’ (HM Government, 2010, p50). This limits the extent to which their markets are connected with other world regions and can hence exert influence on global market prices. Other factors are likely to persist: looking at future pressures from increased demand, Abbott et al (2011) in analysing the 2010-11 price spikes note that the major drivers in 2011 were large and persistent demand shocks from biofuel policies as well as the demand derived from Chinese soybean imports to build up domestic stocks. These demands are expected to grow more slowly in the future, but will nevertheless persist to maintain US ethanol production and Chinese soybean stock levels. According to Abbott et al, this persistence is different from past demand surges over the last century, which were often more short-lived. In terms of the impact of past EU biofuel demand, a recent analysis has been conducted by Ecofys et al (2011) for the European Commission. They note that the contribution of rising biofuel consumption in the EU on the 2007-08 cereal price increases was ‘modest’, while it is shown to be ‘significant in pushing up other food prices, notably prices of oilseeds and vegetable oils’ due to the bigger share of biodiesel production and use (Ecofys et al, 2011, p143). At the same time, the authors note that the increase in global biofuel production in combination with harvest shortfalls, two factors that were found to be ‘mutually reinforcing’ does ‘explain a significant part’ of the 2007-08 price increases (page iv). The anticipated impact of future EU biofuels demand on agricultural markets is discussed in section 5. 4.4 Factors influencing supply The classic determinants of agricultural supply are costs of production, technology and then uncontrollables such as climate, weather, pest and disease. Although agriculture utilises a large part of the land area of most countries, and especially in developing countries it employs a significant proportion of the labour force, land rents and prices and wages are determined by, rather than determinants of, agricultural supply and prices. However, increasingly as agriculture modernises it becomes more dependent on variable inputs purchased from the rest of the economy, particularly energy and fertilisers (which are in turn energy intensive in their production). 26 Petroleum and natural-gas-derived fertilisers15 make up an important share of production costs (for some crops, eg maize, more than for others, eg soybeans, see for instance HM Government, 2010, p36) as do other energy inputs for instance for machinery use and transport. Van der Mensbrugghe et al (2011) provide evidence for the strong response of many commodity prices to changes in energy prices. In the light of rising energy prices, this factor is expected to remain crucial. The rising energy and fertiliser prices have therefore raised agricultural costs, shifted up the agricultural supply curve with significant effect on agricultural prices. It is particularly this fundamental rise in agricultural costs which has lead the FAO and OECD to predict in each of their annual outlook publications since 2008 that agricultural prices will not return in the foreseeable future to their low levels at the beginning of this century (OECD/FAO, 2010). Likewise, the World Bank expects energy prices to be the major contributor to post-2015 increases in food prices (cited in Agra Europe, 2012). More recently and as a result of increasing biofuel demand, a further link has emerged between oil prices and agricultural output prices. Rising oil prices raise the economic viability of biofuels compared to fossil fuels, all other things being equal despite the increase in their own production costs. Increased biofuel production increases the demand for biofuel feedstock, consequently raising their price until the competitiveness of biofuels with fossil fuels equalises. Schmidhuber (2007) has put forward the theoretical argument that biofuel markets establish this closer link between energy and agricultural markets, once oil prices has crossed a certain threshold making biofuels competitive. Empirical analyses have provided evidence for this link between the price levels for energy and different agricultural commodities as well as their volatility and it seems that this evidence is growing and becoming more compelling, based on literature collated by Hertel and Beckman (2011)16. At the same time, Hertel and Beckman concede it is still a recent phenomenon and caveat the existing evidence from econometric studies as ‘[suffering] from insufficient historical time series’ (p9). After production costs the next most important determinant of supply is the state of technology deployed in any farming system. This in turn is multi-dimensional depending on the biotechnology, biology, mechanical, chemical and management systems utilised. It embraces the genetic potential of plants and animals, the plant protection and animal health measures, the degree and type of mechanisation, and the sophistication and information used in management. The size and structure of farms also interacts with technology. These factors are highly variable across the world, and Europe, and are themselves developing all the time. 15 EC DG AGRI (2008) provides time series of crude oil and fertiliser prices illustrating their co-movement and parallel spikes over 2007-08 (p20). 16 Rapsomanikis and Hallam (2006) and Balcombe and Rapsomanikis (2008) study the sugar-oil-ethanol links and find evidence for threshold cointegration between price pairs. Evidence for a link between corn prices and oil prices is found by Tyner (2009) (as quoted by Hertel and Beckman, 2011). Du et al, 2009 (as quoted in Hertel and Beckman, 2011) tests for the existence of a link between the volatility of crude oil prices and of agricultural commodities (corn and wheat). No evidence is found for spill over effects from 1998-2006. Estimations using data for the more recent years (October 2006 to January 2009), however, ‘indicate significant volatility spill over from the crude oil market to the corn market’ (Hertel and Beckman, 2011, p7). 27 The simplest indicator of the net effect of technology is crop or animal yields per hectare or per animal. Yields of agricultural commodities themselves are highly variable from one year to the next depending on the weather conditions prevailing over the crop cycle. Indeed harvest shortfalls in particular of wheat in Australia, a major wheat producer and exporter, are mentioned as one of the more important reasons for the 2007-08 price spikes (Pfuderer and del Castillo, 2008; HM Government, 2010). Yield developments are expected to be influenced by a changing climate. However, the extent to which this will harm and benefit different world regions and the impact on world crop balances are not easily understood or projected (see for instance Msangi and Rosegrant, 2011, and Fischer, 2011). The longer-term development of yields also depends on technological advances, realised over the decades to come. Bruinsma (2011, p262) illustrates the slowing trend in yield growth for major crops globally, which was 1.7 per cent per annum on average over 19612007 and is projected to be 0.8 per cent per annum for 2005/07-2050. 17 Similarly, European Commission analysis for 2010-2020 suggests that average yield growth will not be able to keep up with demand growth, even though the latter is expected to slow down over the period studied, therefore expecting further upward pressure on prices, which in turn, so the optimistic expectation, could speed up yield growth (EC DG AGRI, 2011b). However, there is considerable evidence to show close relationships between agricultural crop yield growth and expenditures on research and development in agriculture (see for instance Piesse and Thirtle, 2010). Private sector R&D effort is driven by economic returns, so rising agricultural prices might be expected to stimulate such activity. Public sector R&D is a political decision, and high-level global commitments have been made since the agricultural price spikes to significantly increase R&D on sustainable agriculture18. 4.5 Other factors influencing international agricultural commodity prices The level of international stocks in agricultural commodities is a major determinant of the extent to which markets can deal with, for instance weather related, supply shortfalls. In other words, stock levels affect the availability of supplies and therefore can have a major impact on prices especially in the short run. Stock levels can be affected by one-off events like a particularly bad harvest but also by persistent demand growth that exceeds growth of crop production. Another important factor are strategic decisions by countries to build up or reduce stocks. A frequently voiced concern is that information on international stock levels is poor and non-transparent, implying uncertainty about stock that may have repercussions for price expectations. Indeed falling stock levels have been suggested by many as an important influence for recent price spikes (FAO et al, 2011). Purchasers are naturally alarmed if stock levels are seen to be low, and will tend to bid up prices to ensure they can satisfy their market. Partly as a response to these concerns, the report prepared for the 2011 G20 meeting of agricultural minsters by several international organisations (FAO et al, 17 He caveats these numbers by clarifying that such aggregate figures may hide variations between and within regions as well as between crops, but claims that the slowdown does reflect a pattern representative for most major crops. 18 Exemplified by the European Commission in their proposals for the next 2014-2020 Multiannual Financial Framework to more than double agricultural R&D (June 2011, available at: http://ec.europa.eu/budget/biblio/documents/fin_fwk1420/fin_fwk1420_en.cfm). 28 2011) calls for an Agricultural Market Information System (AMIS) to improve information on stocks. Pfuderer and del Castillo (2008) point at a negative correlation between stocks-to-use ratios and world prices. This is more closely analysed by the European Commission, revealing that maize and wheat prices ‘are strongly and inversely linked to changes in stocks-to-use ratios’. This elasticity of price to movements in stocks is furthermore increasing, ‘more than doubling since the mid eighties’. This development is particularly pronounced for wheat: Wheat prices historically changed by around 2 per cent in response to a 10 per cent change in the stocks-to-use ratio. But since the mid-1980s, the elasticity has increased to 14 per cent (EC DG AGRI, 2011a, p9). Soybean prices are much less responsive to stock changes attributed to traditionally low world stocks and the fact that soy is grown both in northern and southern hemisphere so that weather shocks can be balanced out. The responsiveness of sugar prices to stock changes has been increasing while no link between rice prices and stocks-to-use ratios is found (EC DG AGRI, 2011). It is interesting to see how stocks have actually developed over time. HM Government (2010) show that the time series of wheat stocks-to-use ratios over the last decades reveals three low points that correspond to periods of spiking cereal prices in the early 1970s, mid1990s (more modest rise in cereal prices compared to the other two periods) and more recently in 2007-08. On the other hand, Abbott et al (2011, following Headey and Fan, 2010) argue that the explanatory power of stock changes is reduced when considering the development of stocks-to-use ratios for the world excluding China, which has followed a stock-reducing policy in recent times especially for grains. They show that the argument that stocks continuously declined over the 2000s and hence running up to the 2007-08 price spikes holds for wheat, but not for soybeans, rice or corn. In a similar vein, EC DG AGRI (2011a) analysis suggests that ‘available data (averaged out over 12-year intervals) show that for most commodities, actual stocks-to-use ratios have remained around long-term averages and in some cases they have even increased over time (from 1997- 2008)’ (p10). Finally, it was mentioned above that recently political decisions in China to build up soybean stocks have triggered a surge in demand that contributed to the 2010-11 price spikes and is projected to be persistent so as to maintain stock levels (Abbott et al, 2011). Trade policies and the resultant degree of integration of global agricultural commodity markets are important for price levels and volatility. Increased trade volumes, and a wider geographic range of sources for instance, can help smooth out supply shortages in one region by imports from another region. The prospect of exporting commodities sought on international markets may act as a stimulant to agricultural development. However, the recent periods of sharply increasing prices have witnessed reactions by governments in the form of trade measures, such as export restrictions, in an attempt to stabilise domestic crop supplies and moderate domestic food price inflation. Pfuderer and del Castillo, 2008 provide a list of measures imposed in a range of countries. The role of such measures is potentially powerful in certain markets; their impacts in 2007-08 were found to be most pronounced in the wheat and rice market, and export bans are cited as having altogether triggered the spikes in the latter market (HM Government, 2010). Martin and Anderson (2011) have estimated that trade barriers aimed at insulating domestic markets have contributed 45 and 30 per cent to the increases in rice and wheat prices in 2006-08, respectively. The impacts of 29 export restrictions are likely to go beyond a short-term destabilising affect but may reduce incentives for production, hence ‘muting the supply response and thereby helping to hold international prices higher for longer’ (HM Government, 2010, p46). Their future relevance is hardly predictable, as it largely depends on decisions taken by individual governments and whether this triggers similar or even retaliatory measures by others. The rising volume19 of agricultural commodities subject to speculation or more generally financial market activity is frequently referred to as one of the culprits for higher and more volatile prices (a summary of such activities explaining both their function and effects is provided by van der Mensbrugghe et al, 2011, p196). However, empirical evidence for the influence of speculation is largely inconclusive. As the Agricultural Outlook summarises, ‘[most] researchers agree that high levels of speculative activity in futures markets may amplify price movements in the short term although there is no conclusive evidence of longer term systemic effects on volatility’ (OECD/FAO, 2011, p16; Abbott et al, 2011, also summarise inconclusive evidence). A potentially important channel is the way in which speculative activity builds up expectations on future prices, which can increase inflationary pressures or volatility. But it is also pointed out in the context of the 2007-08 price spikes that the chain of causality has been the other way around in the sense that ‘speculative flows into agricultural futures markets followed, rather than caused the price increases’, and the same holds for price volatility (HM Government, 2010). Finally agricultural markets can be disturbed by macroeconomic developments for example in exchange rate movements. Many agricultural commodity prices are denoted and traded in US Dollars. If the US Dollar depreciates against currencies of importing countries then these commodities look cheaper and the quantity demanded increases, adding to the other demand pressures. Of course if an importing country’s currency depreciates against other major currencies faster than the Dollar then their imports will look more expensive. The US Dollar did indeed depreciate at the time of the 2007-08 financial crisis (see Figure 5 depicting the movement of the US Dollar exchange rate against the Euro). The future outlook is highly uncertain and depends on a range of macroeconomic conditions, many of which are well outside the sphere of influence of the US Federal Reserve, such as the future developments in China and in the Eurozone and hence the strength of the Euro. Both oil prices and exchange rates tend to be volatile. Therefore, because of their influence on agricultural commodity prices, they can be expected to contribute to price volatility in agricultural markets with potentially severe important implications for food security. 19 More information on increasing volumes can be found in Torero, M ‘Understanding the causes of food price volatility and mitigating its consequences’, presentation given at Brussels Development Briefings on Food Price Volatility, 30 Nov 2011; available at: http://brusselsbriefings.net/past-briefings/no-25-food-pricevolatility/. 30 Figure 5. Euro/Dollar exchange rate Source: http://www.oanda.com/currency/historical-rates/ 4.6 In summary Agricultural commodity prices are highly complex and influenced by a wide variety of factors which shift demand, supply or both, or directly impact on prices. This multitude of effects is neatly summarised in Figure 6 below. Biofuels policy is undoubtedly a significant factor, but not the only one of many causes of shifts in agricultural commodity markets. Because food is a fundamental human need, when markets exhibit volatility, especially in periods of shortage, markets can overshoot with dramatic, but thankfully usually short-lived doubling or trebling of prices in periods of weeks. Figure 6. Factors contributing to food price inflation and volatility Source: Committee on Climate Change, 2011, p41 31 5 THE ROLE OF EU BIOFUEL INCENTIVES ON AGRICULTURAL COMMODITIES PRICES TO 2020: A REVIEW OF SELECTED MODELLING STUDIES The purpose of this section is to provide a review of the existing evidence base on the link between policy driven EU demand for biofuels on the one hand and agricultural commodity prices on the other. This is done through a review of selected modelling based studies. As noted earlier we will not be looking at the impact of biofuel prices on retail food prices as experienced at the national level. Essentially, hardly any models yield these results. Working out separately the consequences of increased agricultural commodity prices for food prices and the resulting welfare impacts for different groups of consumers is outside the scope of what can be achieved here. Box 4 spells out some of the factors involved determining the results of this pass-through and the associated welfare implications. For the purpose of this report we have looked at a range of modelling studies that have been conducted in recent years using economic modelling tools, both partial and general equilibrium models. The studies reviewed include work based on models by international organisations such as the OECD and FAO, models in the hands of universities including the GTAP model (Global Trade Analysis Project, coordinated by Purdue University), an EU agricultural sector model CAPRI (developed mainly by University of Bonn) as well as work by the European Commission’s Joint Research Centres (JRC). A lot of work on the agricultural market effects on biofuel use has been conducted in the USA looking at the implications of the US Energy Independence and Security Act (EISA), which was adopted in 2007. Given their regional focus not all of these studies are relevant in the present context and are therefore not included in the summary table in Annex 220. In this section we first consider the role of models in understanding the impacts on agricultural markets of biofuels policy. Second, we set out our approach to reviewing the models and explain the main dimensions compared. Third, we set out the results of the review by considering each of the characteristics in turn. Fourth, and finally, we reflect on what the studies taken together indicate about the significance of EU biofuel policy on agricultural commodity prices. 5.1 The role of models and our approach to reviewing them 5.1.1 The role of models in understanding the agricultural market impacts of biofuel use Because biofuel demand adds to an existing demand for agricultural commodities, many of which are traded on global markets, understanding the impacts of biofuel policies requires a methodology that can incorporate these interactions through international trade. Sophisticated economic models are needed in order to take a range of important economywide feedback effects into account, akin to the analysis of the land use change impacts from biofuel use (see for example Kretschmer, 2011). These include: impacts felt across agricultural sectors because of related markets (expressed by ‘cross-price elasticities’ that determine the extent to which an increase in the price of, for instance, wheat influences the 20 Examples of studies focusing exclusively on the impact of US biofuel policy and therefore not considered include: Elobeid and Hart (2007), Hayes et al (2009), Rajagopal et al (2009), and Hertel and Beckman (2011). 32 demand for, for instance, corn); impacts on other economic sectors, most notably the energy and, in particular, the oil sector in the case of biofuels; international market impacts due to linkages established by trade flows; consumption response in the food and feed sectors. This last point warrants some additional explanation: Reduced demand for food is likely to be the results of drops in real incomes due to the higher retail prices for food. This response is both real and an artefact of models. The fact that one of the modelled responses to increased biofuel demand is a reduction in food consumption has gained increasing attention in the ILUC debate. Using the GTAP model to study the land use change and associated emissions effects from US biofuel mandates, Hertel et al run an alternative scenario holding food consumption constant, so as to derive a ‘food neutral ILUC factor’, they find that emissions from ILUC ‘per MJ of increased annual production capacity’ increase by 41 per cent (2010a, p230)21. On this topic, Marelli (in Fritsche et al, 2012, p49) reports that substantial increases in crop production would occur when food consumption is not reduced, in other words pointing at an ‘ILUC credit’ due to reduced food consumption. As is stressed in several places in this report, the impacts in the real world will be much more complex than suggested by modelling results: a, for example, two per cent decrease in food consumption globally or on a country-level estimated by an economic model hides the fact that different population groups will be impacted to different extents. Many of the models employed for this purpose have their origins in (agricultural) trade analysis and are either partial (PE) or general equilibrium models (the latter also denoted as CGE, computable general equilibrium models). The role of models is to capture the multitude of economic interactions of the kind summarised above and they do this by adopting a range of simplifying assumptions, for instance about the behaviour of economic actors such as producers and consumers. Most of the models used for analysing biofuel policies aim to run alternative scenarios and analyse the resulting impacts. They are usually not put forward as straight forecasting devices; a notable exception is the AGLINK-COSIMO model that is employed for providing projections for the OECD-FAO Agricultural Outlook. In order to make the models workable, economic sectors as well as countries are aggregated in to clusters of sectors and regions. The precise aggregation depends on the question at hand: for the analysis of biofuel policies, one can expect a more detailed disaggregation of the agricultural sector as well as a singling out of important biofuel producing and consuming countries. Making use of aggregation, together with typically linear dynamics over time, makes it practically impossible to derive reliable predictions such as the impact of EU biofuel use on wheat prices in country X at time T. 5.1.2 Key characteristics of interest We have reviewed the models focussing on a selection of the key characteristics most relevant to the objectives of this study: 21 The supporting online material disaggregates the differences in price effects between the two scenarios, which accounts for up to 0.8 percentage points for global export prices (this refers to their figure for coarse grains, changing from a 7.22 per cent to a 8.04 per cent increase in the scenario keeping food production constant, see Table S4 of the supporting online materials). 33         Type of model, ie partial or general equilibrium models; Geographic and sectoral scope of the model; Whether and in which way crop land expansion is modelled; Whether and in which way biofuel by-products are modelled; Whether and in which way second-generation biofuels are modelled and what their assumed contribution to biofuel targets is; Which biofuel policy scenarios are modelled; Modelled (absolute) biofuel use in 2020 in the EU and globally; In which way agricultural price changes are reported. The importance of some of these aspects in the food versus fuel debate has been introduced in section 3. The following paragraphs address the remaining characteristics and explain how all of them are treated in models, discussing whether these are significant consequences for the results obtained from running the models concerned. The list of characteristics can be found again in the summary review of all the models, presented in Table 5 where it forms the column headings. Annex 2 provides further information about the studies reviewed including more details on the modelling of biofuel technologies and land use (change). Partial or general equilibrium models An advantage of partial equilibrium models is that they entail a detailed representation of a specific economic sector, in the biofuel context this would be the agricultural sector, including the detailed representation of agricultural policies, of a broad range of agricultural processes and of different land uses. This detailed representation comes at the expense of a lack of representation of the remaining economy - that is often lumped together into a single entity. General equilibrium models, on the other hand, have the advantage of accounting for all economic sectors and world regions, thereby fully accounting for the economy-wide feedback effects mentioned before. Sectors as well as countries are grouped into aggregates in order to make the computation manageable. The disadvantage of this comprehensive representation of economies is typically a less detailed representation of individual sectors than found in partial equilibrium models (see also Kretschmer and Peterson, 2010, and Kretschmer, 2011). The type of model used to examine a question will have implications for estimates of price effects. Kretschmer and Peterson (2010) point at the higher, and potentially unrealistically high, implicit supply elasticities in GE compared to PE models (as mentioned in Britz and Hertel, 201122); higher elasticities imply more responsive supply in the face of a demand shock and hence lower price increases. Also, an element of discussion in the ILUC debate is that GE models tend to assume a more elastic food market, ie a more pronounced drop in 22 Britz and Hertel (2011) (whose analysis is not included in the review tables because of their focus on a stylized scenario of a biodiesel-only quota) look at the relative performance of GTAP-only model runs and results from a couple model system including GTAP and CAPRI, in other words compare the results from a CGE model (GTAP) with a combined CGE-PE model system. They report an increase in EU oilseed prices of 48 per cent in the year 2015, while price changes for other crops are negligible due to scenario design. According to Britz and Hertel, the driver of higher price effects is the fact that production constraints and current policies in the EU are better represented through CAPRI; therefore the integrated system displays ‘less domestic supply response and more imports of oilseeds and oils’ than the CGE-only model run. 34 food consumption for a given increase in prices, see the discussion above. Gerber et al (2008) expect price effects to be higher for partial than general equilibrium models. This is in line with findings from a review of modelling studies by Timilsina et al (2010). Out of the models reviewed, five are partial and five are general equilibrium models and one study employs a spread-sheet based approach for calculating price effects. Geographic and sectoral scope of the model Models differ according to their geographical and sectoral detail. The corresponding column in the table gives an idea about the number of regions and sectors the world is divided into in the models considered. As mentioned before the partial equilibrium models reviewed here tend to focus on the agricultural sectors, in which case the number of commodities is mentioned in the table. Modelling of crop land expansion The recent debate on Indirect Land Use Change (ILUC) has highlighted the considerable challenges and at the same time has done a good deal to advance the modelling of land use. The way in which production factor ‘land’ is modelled as well as the treatment of byproducts (next point) are among the crucial assumptions in the present context, as has been argued in more detail in section 3. This implies that important insights in terms of agricultural price effects should be gained from the models that have been at the forefront of the ILUC debate. Allowing for land expansion and intensification of land use (for instance through increased fertiliser application but also through longer term yield response to higher prices) potentially reduces upward pressure on prices as a result of surging crop demand, a point that is inter alia made in Keeney and Hertel (2009). The way that different models deal with the issue of land expansion and yield response is addressed extensively in Edwards et al (2010; see also ‘Box 2. Overview of the source of uncertainties’ in Laborde, 2011, p24). Table 5 below reports whether land model design is such that the area of cultivated land is ‘allowed’ to expand (or contract) in response to price levels or other market conditions. Five of the eleven studies explicitly mention and account for land expansion. The remaining studies do not provide any details, so that it cannot be determined if and in what way the expansion of cultivation is modelled. Annex 2 provides some further details about the way land is modelled. Modelling of biofuel by-products The importance of by-products when it comes to assessing the agricultural market response to biofuels and hence price impacts has been discussed in section 3. Evidence from modelling studies is provided by Taheripour et al (2010), who have found that in their scenarios of the implications of simultaneous EU and US biofuel policies, neglecting byproducts may overstate price impacts by 30 to 40 per cent for some outcome variables. In six of the eleven studies by-products are included in the modelling. One study explicitly mentioned that by-products were not considered, while it is not clear from the remaining ones. 35 Contribution from second-generation biofuels The use of second-generation biofuels is often put forward as a way of reducing the pressures on land use and agricultural markets (see section 3) relative to supplies from food crops. However, EU Member States anticipate using only limited amounts of secondgeneration biofuels up to 2020 (see section 2) and therefore model scenarios that rely on a substantive share of second-generation biofuels should be gauged with caution. Out of the studies reviewed, five do and another five do not include second-generation biofuels, with two studies not specifying any distinction between the two. Where secondgeneration biofuels are included, these are modelled in diverging ways; in some studies it is assumed that the land take requirement of supplying these biofuels is nil, while others assume proportionately lower feedstock and/or land use requirements than for firstgeneration biofuels. Annex 2 provides some further details on this. Biofuel policy scenarios & Biofuel use in 2020 The models reviewed differ tremendously in the way biofuel (policy) scenarios are designed. As far as this information is available, we make clear in Table 5 what the assumptions are about biofuel use or its shares of the transport fuel market in the reference scenario and in the alternative policy scenarios. Key questions addressed are: 1) do the scenarios consider only EU biofuel use and policies or are global use and mandates included as well? 2) Where biofuel mandates are modelled as percentage shares of total fuel use, what absolute magnitudes, and therefore feedstock demands, are implied and how do these magnitudes change from reference to policy scenario? 3) What do different scenarios assume about the market penetration of second-generation biofuels? Given the focus of this study on the effect of EU biofuel policy in 2020, there is a further key question about whether the model’s assumptions about the total amount of biofuel use in 2020 and the increase between the reference use and the 2020 policy scenario use is in line with the volumes that the NREAPs predict. The comparison between the 2010 and 2011 IFPRI studies (Al-Riffai et al, 2010 and Laborde, 2011) on this point and others shows the importance of the amount of mandated biofuel use modelled in relation to the predicted results on indirect land use change. Only five of the eleven studies actually give figures for the assumptions made on absolute biofuel quantities and these show a diverse picture of the scale of biofuel quantities modelled and especially in terms of the differences in biofuel use between reference and policy scenarios. Reporting of price effects Studies differ in the way they report price effects. A straightforward way of reporting the biofuel induced price impacts adopted in many studies is via a so-called ‘comparative-static’ analysis where prices in, for example, a 2020 biofuel policy scenario are compared to prices in a 2020 reference scenario. This is indeed the approach followed by the majority of the studies reviewed. Two of the studies in Table 5, however, report price changes over time, and these two different sets of results cannot be compared. One study (Davies, 2012) only reports price changes in a scenario where biofuel support is removed compared to a 36 baseline of existing support, which cannot be compared to the other studies based on the information provided. 5.2 Results of the review Given the range of different modelling characteristics that are important drivers in shaping the commodity price impacts that the models report as arising from greater biofuels production, the following two sub sections summarise the results with regard to the agricultural commodity price impacts of 1) EU biofuel policy (next section) and 2) global or multiregional policies (subsequent section) 23. The results from all studies are summarised and tabulated below (Table 5) and in Annex 2. Table 5 is divided into two parts, with the first part reporting on studies that focus on the impacts on EU biofuel policies while studies in the second part model global, or at least multiregional targets. Looking at the compendium of studies is useful in order to understand the magnitude of likely agricultural market impacts and how the models looking at these impacts have developed. In order to trace this development, we summarise the studies in chronological order. However, it should also be noted that insights from some of the earlier studies are not generally such as to address the question of how far the RED leads to increases in agricultural prices as, in the absence of the NREAPs, there was still considerable uncertainty at the time about the quantity of biofuels that would actually be used in the EU by 2020. The compendium of studies indicates fairly wide ranges of results. Nonetheless, it is clear at the same time that the impacts of EU biofuel policies are more pronounced on the markets for biodiesel compared to ethanol feedstocks, while global impacts produce a more balanced or even reversed picture. Section 5.3 provides a summary of the impacts of EU biofuel policy on the prices of different feedstocks. 23 Many of the earlier studies in Table 5 (and Annex 2) are also reviewed in Blanco and Fonseca (2010), to which those interested are referred to for further information. Further earlier reviews are provided by Gerber et al (2008) and Timilsina and Shrestha (2010). Gerber et al (2008) have conducted a review of biofuel induced food price effects as predicted by partial and general equilibrium models. The listed results show a highly varying picture difficult to interpret which is mainly due to the differences in assumptions, scenario and model designs and different ways in which results are reported. 37 Geographical and sectoral scope Biofuel policy scenarios Absolute biofuel use in 2020 policy / scenario increase EU (in Mtoe) Absolute biofuel use 2020 policy / scenario increase world (in Mtoe)line with In 2020 NREAP demand Model type Contribution from nd 2 -generation biofuels? Study and model land Crop expansion possible? Byproducts included? Table 5: Summary of key model characteristics and results Studies that focus on the effects of EU biofuel policy (differ in the extent to which global biofuel policies and use are included in the reference) EC DG AGRI PE Global ? Yes Yes EU biofuel policy only 34.6 / ? >/< (2007), EU+Turkey, Baseline with 6.9% biofuel share in 2020 10.8 ESIM USA & RoW, Policy with 10% mandate for 2020 (2nd ag sectors generation contributing 30%) Banse et al (2008), LEITAP Edwards et al (2008) Blanco Fonseca et al (2010), CGE Global 32 regions 23 sectors Yes No No Baseline w/o blending obligation Policy with 10% mandate for 2020 EU 10% 1st generation mandate for 2020 ? ? ? ? ? ? No model Ad hoc calcs PE EU27 - - No Global (see Annex 2 for details on all models) ? Yes Yes EU policy focus but global use accounted for (existing and announced policies modelled in all scenarios) Counterfactual no policy or support Baseline 10% mandate in 2020 (2nd generation, modelled as non land using, st contribute 30%, implying a 7% 1 -generation share due to double counting) ~33.0 / 28.1 (Increase 2008 to 2020 baseline: 22.4) ~124.3 23 / ≈/≈ CGE Global 11 regions 43 sectors Yes Yes No EU policy focus but global use accounted for Baseline with constant 2008 blending of 3.3% Policy with 8.4% 1st-generation mandate 27.2 15.5 111.2 / 7.4 (=production) =/≈ AGLINKCOSIMO, ESIM, CAPRI Laborde (2011), MIRAGE- EU policy focus but global use accounted for (volumes not specified) / Resulting per cent impact on world commodity prices, 2020 policy compared to 2020 reference, unless otherwise stated EU prices (apparently) over 2006-2020: Cereals 3 to 6% Sunflower seeds 15% Rapeseed 8 to 10% nd ‘significantly higher’ effects without 2 generation biofuels Note these price rises are against an underlying assumed decrease in real prices Oilseeds 8.5% Sugar 2.0% Cereals 6.0% Context: declining real ag prices Compared to no biofuel use, world cereal price 4% vegetable oils 24% AGLINK-COSIMO: veg oil ~15%, small for ethanol feedstocks ESIM: Wheat 8, maize 22, sugar 21% Soybeans 0.5, rapeseeds 10, sunflower seeds 11% Veg oils palm 1, soy 17, rape 35, sunflower 36% CAPRI: Wheat 12.5, maize 8.0, sugar beet 2.0% Oilseeds 19.5, Vegetable oil 27.1% Selected price changes for policy scenario: Wheat 1.01% Maize 0.74% Biofuel policy scenarios Absolute biofuel use in 2020 policy / scenario increase EU (in Mtoe) Absolute biofuel use 2020 policy / scenario increase world (in Mtoe)line with In 2020 NREAP demand Geographical and sectoral scope Contribution from nd 2 -generation biofuels? Model type land Crop expansion possible? Byproducts included? Study and model Biof Davies (2012) AGLINKCOSIMO PE Global All major commodities ? ? ? EU policy but global use accounted for (see below for combined EU+US scenario) Existing biofuel support Baseline including biofuel support policies (2011 Agricultural Outlook projection) Removing EU support by abolishing import tariffs and tax incentives from 2011 onwards Studies that analyse the impacts of global (or at least multi-regional) biofuel mandates Rosegrant PE Global ? ? Yes Global policies et al (2006), 115 regions, 1. Aggressive growth and baseline yields IMPACT 30 2. Cellulosic biofuels as of 2015 commodities 3. Aggressive growth + cellulosic + increased yield growth Use of 2nd-generation modelled by reducing demand for 1st-generation biofuel feedstock OECD PE Global ? Yes Yes Global policies (2008), All major No biofuel policy support AGLINKcommodities Existing biofuel support – world COSIMO Existing plus new policies incl 50% met by 2nd generation nd 2 -generation: on avg 50% of biomass from cropland, rest from crop residues (see note 15 in OECD, 2008, p91) 39 ? ? ? ? ? ? 25.4 19.7 (2013-17 avg) / 96.0 38.7 (2013-17 avg) /