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Th e paper examines the price volatility spillovers among the crude oil, soybeans, corn, wheat, and sugar futures markets over the period 1/1/2006-11/29/2013. We separately investigate the periods of the pre-crisis, the crisis, and the post-crisis in fi nancial markets. We use the Yang-Zhang estimators for the historical volatility and fi nd that there is a volatility sprawl from the crude oil to corn markets. Th ere is also bi-directional causality between the corn and soybeans markets. Indoi:10.17221/162/2014-agricecon fatcat:kbpwkavnz5gfzajaj5vcwhp6jq