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Deconstructing Wheat Price Spikes: A Model of Supply and Demand, Financial Speculation, and Commodity Price Comovement

by Joseph Janzen, Colin A. Carter, Aaron Smith, and Michael K. Adjemian

Economic Research Report No. (ERR-165) 51 pp, April 2014

cover image ERR165 In 2008, wheat futures prices spiked and then crashed along with prices for other agricultural and non-agricultural commodities. This study uses an econometric model to explain the influence of various factors, incuding passive speculation by large traders, on wheat prices. Findings show that market-specific shocks related to supply and demand for wheat were the dominant cause of price spikes.

Keywords: Commodity prices, comovement, futures, index funds, speculation, wheat

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Last updated: Tuesday, April 29, 2014

For more information contact: Joseph Janzen, Colin A. Carter, Aaron Smith, and Michael K. Adjemian