Subvector Technical EffÏciency : An Application to French Agriculture

Isabelle Piot-Lepetit (1) , Dominique Vermersch (1) , Robert D. Weaver (2) , . American Agricultural Economics Association (3)

1 Unité d'économie et sociologie rurales de rennes
2 Penn State - Pennsylvania State University
3 AAEA - American Agricultural Economics Association

When quasi-fixed factors exist, only subvector measures of technical efficiency are consistent with short-run economic efficiency. They are shown to be less than or equal to radial measures and to increase as the number of quasi-fixed factors is increased. Nonparametric estimates for French cereal farms evaluate robustness of technical efficiency scores with respect to quasi-fixed factors. While the distribution of scores changed substantially, their mean and rank ordering did not change significantly. Nonetheless, both theoretical and empirical results highlight the importance for the DEA approach to technical effrciency estimation of accurate specification of the salient characteristics of the technology and economic environment faced by firms.

Mots clés: EFFICACITE TECHNIQUE; use efficiency

Mots clés: méthode dea; efficacité

Domaines: Economies et finances

Isabelle Piot-Lepetit, Dominique Vermersch, Robert D. Weaver, . American Agricultural Economics Association. Subvector Technical EffÏciency : An Application to French Agriculture. American Agricultural Economics Association Annual Meeting, American Agricultural Economics Association (AAEA). USA., Aug 1995, Indianapolis, United States. 13 p. ⟨hal-02403487⟩