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Disentangling Corn Price Volatility: The Role of Global Demand,Speculation, and Energy

Published online by Cambridge University Press:  26 January 2015

Lihong Lu McPhail ,
Xiaodong Du  and
Andrew Muhammad
Lihong Lu McPhail
Affiliation:
Economic Research Service, U.S. Department of Agriculture, Washington, DC
Xiaodong Du
Affiliation:
Department of Agricultural and Applied Economics, University of Wisconsin-Madison, Madison, Wisconsin
Andrew Muhammad
Affiliation:
Economic Research Service, U.S. Department of Agriculture, Washington, DC
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Abstract

Despite extensive literature on contributing factors to the high commodityprices and volatility in the recent years, few have examined these causalfactors together in one analysis. We quantify empirically the relativeimportance of three factors: global demand, speculation, and energyprices/policy in explaining corn price volatility. A structural vectorauto-regression model is developed and variance decomposition is applied tomeasure the contribution of each factor in explaining corn price variation.We find that speculation is important, but only in the short run. However,in the long run, energy is the most important followed by global demand.

Keywords

cornglobal demandenergyprice volatilityspeculationstructural vector autoregressionQ11C32G2Q4
Type
Invited Paper Sessions
Information
Journal of Agricultural and Applied Economics , Volume 44 , Issue 3 , August 2012 , pp. 401 - 410
Copyright
Copyright © Southern Agricultural Economics Association 2012

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References

Abbott, R.C., Hurt, C., and Tyner, W.. “What's Driving Food Prices?” Issue Report. Farm Foundation, July 2008.Google Scholar
Alber, D., “Demand Growth in Developing Countries.” Food, Agriculture and Fisheries Working Papers. Organisation for Economic Co-operation and Development, 2010.Google Scholar
Baffes, J., and Haniotis, T.. “Placing the 2006/08 Commodity Price Boom into Perspective.” Policy Research Working Paper Series: 5371. The World Bank, 2010.Google Scholar
Carter, C.A., Zhong, F., and Zhu, J.. “China's Role in the 2007-2008 Global Food Price Boom and Bust.” EuroChoices 8(2009): 17–23.10.1111/j.1746-692X.2009.00127.xGoogle Scholar
Dartanto, T., and Usman, M.. “Volatility of World Soybean Prices, Import Tariffs and Poverty in Indonesia: A CGE-Microsimulation Analysis.” Margin: The Journal of Applied Economic Research 5(2011): 139–81.Google Scholar
Du, X., and McPhail, L.L.. “Inside the Black Box: The Price Linkage and Transmission between Energy and Agricultural Markets.” The Energy Journal 33(2012):171–94.Google Scholar
Enders, W., Applied Econometric Times Series, 3rd ed. New York: Wiley, 2010.Google Scholar
EODData. BDI data, 2011 Internet site: http://www.eoddata.com/stockquote/TNDEX/BDI.htm (Accessed October 1, 2011).Google Scholar
Federal Reserve Bank of St. Louis. Trade Weighted U.S. Dollar Index: Major Currencies, 2011. Internet site: http://research.stlouisfed.org/fred2/series/DTWEXM?cid=105 (Accessed October 1, 2011).Google Scholar
Gilbert, C.L., “How to Understand High Food Prices.” Journal of Agricultural Economics 61(2010):398–425.10.1111/j.1477-9552.2010.00248.xGoogle Scholar
Harri, A., Nalley, L., and Hudson, D.. “The Relationship between Oil, Exchange Rates, and Commodity Prices.” Journal of Agricultural and Applied Economics 41(2009):501–10.S1074070800002959Google Scholar
Hertel, T.W., and Beckman, J.. “Commodity Price Volatility in the Biofuel Era: An Examination of the Linkage between Energy and Agricultural Markets.” Working Papers: 16824. National Bureau of Economic Research, Inc., 2011.Google Scholar
Irwin, S.H., and Sanders, D.R.. “Index Funds, Financialization, and Commodity Futures Markets.” Applied Economic Perspectives and Policy 33(2011):1–31.10.1093/aepp/ppq032Google Scholar
Irwin, S.H., Sanders, D.R., and Merrin, R.P.. “Devil or Angel? The Role of Speculation in the Recent Commodity Price Boom (and Bust).” Journal of Agricultural and Applied Economics 41(2009): 377–91.S1074070800002856Google Scholar
Kilian, L., “Not All Oil Price Shocks Are Alike: Disentangling Demand and Supply Shocks in the Crude Oil Market.” The American Economic Review 99(2009): 1053–69.10.1257/aer.99.3.1053Google Scholar
McPhail, L.L., “Assessing the Impact of US Ethanol on Fossil Fuel Markets: A Structural VAR Approach.” Energy Economics 33(2011):1177–85.10.1016/j.eneco.2011.04.012Google Scholar
Mitchell, D., “A Note on Rising Food Prices.” Policy Research Working Paper. The World Bank, 2008.Google Scholar
Natanelov, V, Alam, M.J., McKenzie, A.M., and Huylenbroeck, G. Van. “Is There Co-movement of Agricultural Commodities Futures Prices and Crude Oil?” Energy Policy 39(2011):4971–84.10.1016/j.enpol.2011.06.016Google Scholar
Power, G.J., and Turvey, C.G.. “Revealing the Impact of Index Traders on Commodity Futures Markets.” Applied Economics Letters 18(2011): 621–26.10.1080/13504851003761848Google Scholar
Runkle, D.E., “Vector Autoregressions and Reality.” Journal of Business & Economic Statistics 20(2002): 128–33.10.1198/073500102753410435Google Scholar
Sanders, D.R., and Irwin, S.H.. “A Speculative Bubble in Commodity Futures Prices? Cross-Sectional Evidence.” Agricultural Economics 41(2010):25–32.10.1111/j.1574-0862.2009.00422.xGoogle Scholar
Schnepf, R., High Agricultural Commodity Prices: What Are the Issues? CRS Report for Congress. Washington, DC: Congressional Research Service, 2008.Google Scholar
Trostle, R., “Global Agricultural Supply and Demand: Factors Contributing to the Recent Increase in Food Commodity Prices.” ERS Report WRS-0801. Economic Research Service, US Department of Agriculture, 2008.Google Scholar
Tyner, W.E., and Taheripour, F.. “Policy Options for Integrated Energy and Agricultural Markets.” Review of Agricultural Economics 30(2008): 387–96.10.1111/j.1467-9353.2008.00412.xGoogle Scholar
U.S. Commodity Futures Trading Commission. Commitments of Traders. 2011. Internet site: http://vvww.cftc.gov/MarketRerx)rts/CornmitmentsofTraders/index.htm (Accessed October 1, 2011).Google Scholar
U.S. Department of Agriculture Economic Research Service. Feed Grains Database. 2011. Internet site: http://www.ers.usda.gov/Data/FeedGrains/ (Accessed October 1, 2011).Google Scholar
Working, H., “Speculation on Hedging Markets.” Food Research Institute Studies 1(1960): 185–220.Google Scholar
Yang, J., Balyeat, R.B., and Leatham, D.J.. “Futures Trading Activity and Commodity Cash Price Volatility.” Journal of Business Finance & Accounting 32(2005):297–323.10.1111/j.0306-686X.2005.00595.xGoogle Scholar