Resumen

SALGADO BANDA, Héctor  y  BERNAL VERDUGO, Lorenzo Ernesto. Funciones de costos translogarítmicas. Una aplicación para el sector manufacturero mexicano. El trimestre econ [online]. 2010, vol.77, n.307, pp.683-717. ISSN 2448-718X.

We use translog cost functions to estimate own-price and substitution elasticities of input demands, economies of scale and average costs in Mexican manufacturin. Data from the Mexican Annual Industrial Survey is used for 1996, 2000 and 2003. We show that a model that allows for nonhomotheticity and nonunitary elasticities of substitution is appropriate to represent the production structure. Allen-Uzawa elasticities indicate the existence of substitution possibilities amongst inputs. The demand for electricity is essentially unitary elastic. All cross-price elasticities are less than one. Both scale economies and average costs diminish as the size of activity class increases. Economies of scale increased for any level of output. The differences in average costs between small and large activity classes were reduced and some dis parities prevail in a number of manufacturing groups.

Palabras llave : modelos con ecuaciones simultáneas; función de costos translogarítmica; manufacturas.