Crop Yield Skewness Under Law of the Minimum Technology

David A. Hennessy

American Journal of Agricultural Economics, 2009, vol. 91, issue 1, pages 197-208

Abstract: No satisfactory motivation has been forwarded in favor of any crop yield distribution, including the normal. This article explores the foundations of yield distributions for the Law of the Minimum resource constraint technology at the plot level of analysis. With independent, identical, uniform resource availability distributions the yield skew is positive, whereas it is negative whenever the distributions are normal. Simulations show how asymmetries in resource availabilities determine skewness. It is suggested that a negative yield skew occurs whenever production is tightly controlled so that the left tails of some resources availabilities distributions are thin. Irrigation may increase yield skewness. Copyright Copyright 2008 Agricultural and Applied Economics Association.

Date: 2009

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