This book shows how decisions made by individual farmers influence the efficiency of agricultural markets. Unless farmers properly take account of the correlation between prices and yields in forming their price forecasts, competitive markets will often be socially inefficient, leading to misallocation of resources. The authors demonstrate that a simple and practical price forecasting rule, based on expected per unit revenue, is generally adequate to ensure efficient market behavior.Time-series data from various countries are used to test the hypothesis that market supply is influenced by the...