Stochastic Frontier Models with Dependent Errors based on Normal and Exponential Margins

Emilio Gómez-Déniz; Jorge V. Pérez-Rodríguez

doi:10.46661/revmetodoscuanteconempresa.2684

Autores/as

Emilio Gómez-Déniz Department of Quantitative Methods in Economics and TiDES Institute University of Las Palmas de Gran Canaria
Jorge V. Pérez-Rodríguez Department of Quantitative Methods in Economics University of Las Palmas de Gran Canaria

DOI:

https://doi.org/10.46661/revmetodoscuanteconempresa.2684

Palabras clave:

technical and cost efficiencies, stochastic frontier, marginal distribution, dependence, Sarmanov model, eficiencias técnica y de coste, frontera estocástica, distribución marginal, dependencia, modelo de Sarmanov

Resumen

Continuando el reciente trabajo de Gómez-Déniz y Pérez-Rodríguez (2014), el presente artículo extiende los resultados obtenidos a la distribución normal-exponencial con dependencia. En consecuencia, el principal propósito de este artículo es mejorar el modelado de la frontera estocástica tanto de producción como de coste proponiendo para ello una distribución bivariante para errores dependientes que nos permitan encajar los modelos clásicos. Se obtienen las expresiones en forma cerrada para el término de error y la eficiencia técnica. Se ilustra la aplicabilidad del modelo propouesto usando datos reales existentes en la literatura econométrica.

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Citas

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