Production Risk and the Evolution of Varietal Technology

Greg Traxler (), Jose Falck-Zepeda, J.I. Ortiz-Monasterio R. and Ken Sayre
Authors registered in the RePEc Author Service: José Benjamin Falck Zepeda

American Journal of Agricultural Economics, 1995, vol. 77, issue 1, 1-7

Abstract: A Just-Pope production function is used to estimate the effect of genetic improvement on the first two moments of wheat yield for the period 1950–86. The model characterizes the green revolution as the culmination of an era in which wheat breeders achieved rapid increases in yield potential accompanied by higher yield variances. To date, the post-green revolution has been an era of slower mean yield growth, but of relatively rapid improvement in yield stability. Overall, the analysis indicates steady progress in producing "better" varieties; successive releases have improved either stability, mean yield, or both.

Date: 1995
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