1. Distributed Lags and Estimation of Long-Run Supply and Demand Elasticities: Theoretical Considerations;Nerlove;Journal of Farm Economics,1958
2. Specification with expected net returns to winter wheat did not produce wheat net-return coefficients significant at the 10% level.
3. U.S. Department of Agriculture. Agricultural Stabilization and Conservation Service Various news releases. Database from James Langley. Washington, DC.
4. The Wall Street Journal. Commodity Futures Prices. Various issues, 1960–90.