Dans ce papier, les auteurs proposent une méthode générique permettant de mesurer la variété au sein d'une famille de technologies. Cette méthode de mesure de la variété est appliquée aux technologies du raffinage. Les résultats font apparaître des comportements classiques de...

Evolutionary theories of economic development stress the role of variety as both a determinant and a result of growth. In this paper we develop a measure of variety, based on Weitzman`s maximum likelihood procedure. This measure is based on the distance between products, and indicates the degree...

Evolutionary theories of economic development stress the role of variety as both a determinant and a result of growth. In this paper we develop a measure of variety, based on Weitzman's maximum likelihood procedure. This measure is based on the distance between products, and indicates the degree...