We explore effects of simultaneous price changes for the demand of a group of goods, which we refer to as a compound commodity. Specifically, we consider unit and proportional cost components (e. g., taxes, transportation costs, etc.) imposed on the compound commodity. We find that there is a...

This paper investigates the forecastability of prices and returns in commodity futures markets. To examine the implications for models of commodity prices we derive a new canonical affine form that lends itself to model evaluation and comparison. Both regressions and model estimates imply that...