Mean-Gini analysis of stochastic externalities: The case of groundwater contamination

Haim Shalit ()

Environmental & Resource Economics, 1995, vol. 6, issue 1, pages 37-52

Abstract: The mean-Gini approach is used to analyze stochastic externalities generated by agricultural production. The model addresses the problem of groundwater pollution caused by excessive fertilizer application. Inherent in the mean-Gini approach to expected utility maximization is a two-fold value: the simplicity of the two-parameter mean-variance model and satisfaction of necessary and sufficient conditions for stochastic dominance. Price and quantity policy recommendations to control externalities are formulated based upon the relative assessment of uncertainty by the regulatory authority and the farmers. Using the Gini as a measure of risk allows for the quantification of control policy measures under differentiated risk aversion and multiple sources of pollution. The model shows that when producers underestimate uncertainty, quota policies restricting fertilizer are more efficient than tax policies in reducing groundwater contamination. Copyright Kluwer Academic Publishers 1995

Keywords: Stochastic externalities; water pollution policies; stochastic dominance (search for similar items in EconPapers)
Date: 1995
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