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Efficiency Tests Of July Kansas City Wheat Futures

  • Kastens, Terry L.
  • Schroeder, Ted C.

Three procedures are used to test Fama semistrong from efficiency of harvesttime price of Kansas City July wheat futures from 1947 through 1995. The three methods are (a) testing for jointly significant parameter estimates on nonfutures explanatory variables in econometric forecasting models, (b) testing the relative accuracy between model-based forecasts and using deferred futures prices as forecasts, and (c) testing for abnormal profits associated with simulated futures trading signaled by the forecasts. Kansas City July wheat futures are generally efficient. Furthermore, relative to the efficiency associated with forecasts constructed one to two months before harvest, the efficiency associated with the five- to six-month period before harvest has increased, especially since the early 1980s.

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File URL: http://purl.umn.edu/31035
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Article provided by Western Agricultural Economics Association in its journal Journal of Agricultural and Resource Economics.

Volume (Year): 21 (1996)
Issue (Month): 02 (December)
Pages:

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Handle: RePEc:ags:jlaare:31035
Contact details of provider: Web page: http://waeaonline.org/

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  1. Russell Davidson & James G. MacKinnon, 1981. "Tests for Model Specification in the Presence of Alternative Hypotheses: Some Further Results," Working Papers 430, Queen's University, Department of Economics.
  2. Harvey, Andrew C. & Collier, Patrick, 1977. "Testing for functional misspecification in regression analysis," Journal of Econometrics, Elsevier, vol. 6(1), pages 103-119, July.
  3. Gerlow, Mary E. & Irwin, Scott H. & Liu, Te-Ru, 1993. "Economic evaluation of commodity price forecasting models," International Journal of Forecasting, Elsevier, vol. 9(3), pages 387-397, November.
  4. Allen, P. Geoffrey, 1994. "Economic forecasting in agriculture," International Journal of Forecasting, Elsevier, vol. 10(1), pages 81-135, June.
  5. Bessler, David A. & Brandt, Jon A., 1992. "An analysis of forecasts of livestock prices," Journal of Economic Behavior & Organization, Elsevier, vol. 18(2), pages 249-263, July.
  6. Ashley, R & Granger, C W J & Schmalensee, R, 1980. "Advertising and Aggregate Consumption: An Analysis of Causality," Econometrica, Econometric Society, vol. 48(5), pages 1149-67, July.
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