Global Food Price Volatility and Spikes: An Overview of Costs, Causes, and Solutions
Since the 2007–08 food crisis, many thoughtful analyses have addressed the causes and impacts of high and volatile international food prices and proposed solutions to the crisis. These studies have covered global as well as local food price dynamics and policy reactions. The food price problem is, however, far-reaching, and its impacts are wide and interrelated. The price formation mechanism has become highly complex and dynamic. Policy actions are politically and economically sensitive. This situation calls for continuous and comprehensive assessments of the problem to provide timely and evidence-based knowledge for policy makers. This paper reviews existing evidence and theories and presents new thoughts and insights from analyses to enlighten the course of actions to be taken. Our review implies that the current body of literature concentrates on high food prices. Commodity price analysis should, however, differentiate between three types of price changes: trends, volatility, and spikes. While price trends are important in the long term, volatility and spikes are more important in the short to medium terms. Descriptive statistics indicate that all three price changes are increasing over time and show strong correlations among themselves. A rising medium-term price trend has triggered extreme short-term price spikes and increased volatility. An assessment of the costs of price volatility has shown that the existing literature follows a conventional marginal-cost approach that considers only few cost components. Direct and immediate components have not been adequately analyzed, and long-term effects have been overlooked. The effect on child nutrition and health is one such long-term effect. Under-nutrition in early childhood has negative consequences for lifetime earnings capacity because of the physical and mental impairment it causes. Economy wide distortions and misallocations also threaten the long-term development of commodity-dependent economies. Measuring and estimating the cost of food price volatility should factor in ongoing processes such as economic growth and technological changes. The supply, demand, and market explanations for high and volatile global prices have been differentiated as exogenous and endogenous factors. To help further identify the drivers of food price changes, they are categorized as root causes, intermediate causes, and immediate causes. Both empirical and theoretical evaluations suggest extreme weather events from the supply side, biofuel production from the demand side, and speculation in commodity futures from the market side are the three most important root causes of observed price volatility. The theoretical and empirical effects of speculation in commodity futures are not yet well understood. However, speculative trading in commodity futures should not be viewed as a random bet that can be smoothed out through the price system. It is important to consider the market and nonmarket contexts that guide the behavioral and strategic choices of speculators. Whereas speculation caused by manipulative, disorderly behaviors and ‘financialization’ are damaging, speculation caused by demand and supply in physical markets can serve as price discovery, liquidity, and risk-hedging mechanisms. Our empirical analysis to quantify the importance of these factors shows that speculation effect is stronger than demand- and supply-side shocks for short term price spikes. Overall policy interventions at global, regional, and local levels should concentrate on reducing price spikes and protecting poor people from short- and long-term crises. The viii formulation and implementation of such policies must be supported with timely information and research-based evidence. A comprehensive portfolio of policy actions is proposed here, rather than over-extended individual measures to address the root causes or over-regulation of markets to address volatility and spikes. Evaluation of policy instruments should weigh the true costs associated with both, action versus inaction. Research must focus on developing price and food security indicators and models that will guide policy implementation also in the short run. Such models are currently missing.
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- Irwin, Scott H. & Sanders, Dwight R. & Merrin, Robert P., 2009. "Devil or Angel? The Role of Speculation in the Recent Commodity Price Boom (and Bust)," Journal of Agricultural and Applied Economics, Cambridge University Press, vol. 41(02), pages 377-391, August.
- Quentin Wodon & Hassan Zaman, 2010. "Higher Food Prices in Sub-Saharan Africa: Poverty Impact and Policy Responses," World Bank Research Observer, World Bank Group, vol. 25(1), pages 157-176, February.
- Ivanic, Maros & Martin, Will & Zaman, Hassan, 2011.
"Estimating the short-run poverty impacts of the 2010-11 surge in food prices,"
Policy Research Working Paper Series
5633, The World Bank.
- Ivanic, Maros & Martin, Will & Zaman, Hassan, 2012. "Estimating the Short-Run Poverty Impacts of the 2010–11 Surge in Food Prices," World Development, Elsevier, vol. 40(11), pages 2302-2317.
- Seale, James L., Jr. & Regmi, Anita & Bernstein, Jason, 2003.
"International Evidence On Food Consumption Patterns,"
33580, United States Department of Agriculture, Economic Research Service.
- Seale, James & Regmi, Anita & Bernstein, Jason, 2003. "International Evidence on Food Consumption Patterns," Technical Bulletins 184321, United States Department of Agriculture, Economic Research Service.
- Reinhart, Carmen M. & Rogoff, Kenneth S., 2009.
"The Aftermath of Financial Crises,"
11129155, Harvard University Department of Economics.
- Reinhart, Carmen M. & Rogoff, Kenneth, 2009. "The Aftermath of Financial Crises," CEPR Discussion Papers 7209, C.E.P.R. Discussion Papers.
- Reinhart, Carmen & Rogoff, Kenneth, 2008.
"Las secuelas de las crisis financieras
[The aftermath of financial crisis]," MPRA Paper 13695, University Library of Munich, Germany.
- Carmen M. Reinhart & Kenneth S. Rogoff, 2009. "The Aftermath of Financial Crises," NBER Working Papers 14656, National Bureau of Economic Research, Inc.
- Mitchell, Donald, 2008. "A note on rising food prices," Policy Research Working Paper Series 4682, The World Bank.
- von Braun, Joachim & Torero, Maximo, 2008. "Physical and virtual global food reserves to protect the poor and prevent market failure:," Policy briefs 4, International Food Policy Research Institute (IFPRI).
- Christopher L. Gilbert, 2010. "How to Understand High Food Prices," Journal of Agricultural Economics, Wiley Blackwell, vol. 61(2), pages 398-425.
- Bellemare, Marc F. & Barrett, Christopher B. & Just, David R., 2010. "The Welfare Impacts of Commodity Price Fluctuations: Evidence from Rural Ethiopia," MPRA Paper 24457, University Library of Munich, Germany.
- Getaw Tadesse & Atle G. Guttormsen, 2011. "The behavior of commodity prices in Ethiopia," Agricultural Economics, International Association of Agricultural Economists, vol. 42(1), pages 87-97, 01.
- repec:trn:utwpde:1002 is not listed on IDEAS
- Ulimwengu, John M. & Workneh, Sindu & Paulos, Zelekawork, 2009. "Impact of soaring food price in Ethiopia: Does location matter?," IFPRI discussion papers 846, International Food Policy Research Institute (IFPRI).
- Marilyne Huchet-Bourdon, 2011. "Agricultural Commodity Price Volatility: An Overview," OECD Food, Agriculture and Fisheries Papers 52, OECD Publishing.
- Nelson, Gerald C. & Rosegrant, Mark W. & Koo, Jawoo & Robertson, Richard & Sulser, Timothy & Zhu, Tingju & Ringler, Claudia & Msangi, Siwa & Palazzo, Amanda & Batka, Miroslav & Magalhaes, Marilia & Va, 2009. "Climate change: Impact on agriculture and costs of adaptation," Food policy reports 21, International Food Policy Research Institute (IFPRI).
- von Braun, Joachim & Meinzen-Dick, Ruth Suseela, 2009. ""Land grabbing" by foreign investors in developing countries: Risks and opportunities," Policy briefs 13, International Food Policy Research Institute (IFPRI).
- Peter Warr, 2008. "World food prices and poverty incidence in a food exporting country: a multihousehold general equilibrium analysis for Thailand," Agricultural Economics, International Association of Agricultural Economists, vol. 39(s1), pages 525-537, November.
- Hikaru Hanawa Peterson & William G. Tomek, 2005.
"How much of commodity price behavior can a rational expectations storage model explain?,"
International Association of Agricultural Economists, vol. 33(3), pages 289-303, November.
- Peterson, Hikaru Hanawa & Tomek, William G., 2003. "How Much Of Commodity Price Behavior Can A Rational Expectations Storage Model Explain?," Staff Papers 30712, Kansas State University, Department of Agricultural Economics.
- Zahoor ul Haq & Hina Nazli & Karl Meilke, 2008. "Implications of high food prices for poverty in Pakistan," Agricultural Economics, International Association of Agricultural Economists, vol. 39(s1), pages 477-484, November.
- Harri, Ardian & Nalley, Lanier & Hudson, Darren, 2009.
"The Relationship between Oil, Exchange Rates, and Commodity Prices,"
Journal of Agricultural and Applied Economics,
Cambridge University Press, vol. 41(02), pages 501-510, August.
- Harri, Ardian & Nalley, Lawton Lanier & Hudson, Darren, 2009. "The Relationship between Oil, Exchange Rates, and Commodity Prices," Journal of Agricultural and Applied Economics, Southern Agricultural Economics Association, vol. 41(02), August.
- Karali, Berna & Power, Gabriel J., 2009. "What Explains High Commodity Price Volatility? Estimating a Unified Model of Common and Commodity-Specific, High- and Low-Frequency Factors," 2009 Annual Meeting, July 26-28, 2009, Milwaukee, Wisconsin 49576, Agricultural and Applied Economics Association.
- "Edward" Yu, Tun-Hsiang & Tokgoz, Simla & Wailes, Eric & Chavez, Eddie, 2011. "A quantitative analysis of trade policy responses to higher world agricultural commodity prices," Food Policy, Elsevier, vol. 36(5), pages 545-561, October.
- Headey, Derek, 2011.
"Was the global food crisis really a crisis?: Simulations versus self-reporting,"
IFPRI discussion papers
1087, International Food Policy Research Institute (IFPRI).
- Headey, Derek, 2011. "Was the Global Food Crisis Really a Crisis?: Simulations versus Self-Reporting," Research briefs 17, International Food Policy Research Institute (IFPRI).
- Zezza, Alberto & Davis, Benjamin & Azzarri, Carlo & Covarrubias, Katia & Tasciotti, Luca & Anriquez, Gustavo, 2009.
"The Impact of Rising Food Prices on the Poor,"
2009 Conference, August 16-22, 2009, Beijing, China
51696, International Association of Agricultural Economists.
- Alberto Zezza & Benjamin Davis & Carlo Azzarri & Katia Covarrubias & Luca Tasciotti & Gustavo Anriquez, 2008. "The Impact of Rising Food Prices on the Poor," Working Papers 08-07, Agricultural and Development Economics Division of the Food and Agriculture Organization of the United Nations (FAO - ESA).
- Anríquez, Gustavo & Daidone, Silvio & Mane, Erdgin, 2013. "Rising food prices and undernourishment: A cross-country inquiry," Food Policy, Elsevier, vol. 38(C), pages 190-202.
- Robles, Miguel & Torero, Maximo & von Braun, Joachim, 2009. "When speculation matters:," Issue briefs 57, International Food Policy Research Institute (IFPRI).
- Piesse, Jenifer & Thirtle, Colin, 2009. "Three bubbles and a panic: An explanatory review of recent food commodity price events," Food Policy, Elsevier, vol. 34(2), pages 119-129, April.
- Williams,Jeffrey C. & Wright,Brian D., 2005.
"Storage and Commodity Markets,"
Cambridge University Press, number 9780521023399, December.
- Irwin, Scott H. & Sanders, Dwight R. & Merrin, Robert P., 2009. "Devil or Angel? The Role of Speculation in the Recent Commodity Price Boom (and Bust)," Journal of Agricultural and Applied Economics, Southern Agricultural Economics Association, vol. 41(02), August.
- von Braun, Joachim, 2007. "The world food situation: New driving forces and required actions," Food policy reports 18, International Food Policy Research Institute (IFPRI).
- Minot, Nicholas, 2011. "Transmission of world food price changes to markets in Sub-Saharan Africa:," IFPRI discussion papers 1059, International Food Policy Research Institute (IFPRI).
- Gustafson, Robert L., 1958. "Carryover levels for grains: A method for determining amounts that are optimal under specified conditions," Technical Bulletins 157231, United States Department of Agriculture, Economic Research Service.
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