Components of Grain Futures Price Volatility
We analyze the determinants of daily futures price volatility in corn, soybeans, wheat, and oats markets from 1986 to 2007. Combining the information from simultaneously traded contracts, a generalized least squares method is implemented that allows us to clearly distinguish among time-to-delivery effects, seasonality, calendar trend, and volatility persistence. We find strong evidence of time-to-delivery (Samuelson) effects and systematic seasonal components with volatility increasing prior to harvest times— an indirect confirmation of the theory of storage.
Karali, Berna; Thurman, Walter N., Components of Grain Futures Price Volatility, Journal of Agricultural and Resource Economics, Volume 35, Issue 2, August 2010, Pages 167–182
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