The Bias Due to Omitting Income When Estimating Demand Functions |
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| Authors: | Richard Green Zuhair A Hassan S R Johnson |
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| Institution: | Professor of agricultural economics, University of Davis, California.;Associate director, Policy Branch, Agriculture Canada, Ottawa, Ontario.;Professor of economics and director of CARD. Giannini Foundation Paper no. 1042 |
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| Abstract: | This paper obtains an expression of the bias when relevant explanatory variables are omitted in seemingly unrelated regression (SUR) models. A simple demand system is provided to illustrate the direction of the bias terms when a variable is omitted.
L'article permet d'exprimer le biais qui résulterait de l'omission de variables explicatives pertinentes dans des modéles de régression sans corrélation apparente (SUR). Le système de demande simple qui est présente ici met en évidence le sens des éléments de biais lorsqu'on omet une variable. |
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