Estimation of technical efficiency: a combined approach Cover Image

Estymacja efektywności technicznej: Podejście kombinowane
Estimation of technical efficiency: a combined approach

Author(s): Lucyna Błażejczyk-Majka, Radosław Kala
Subject(s): Economy
Published by: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie
Keywords: DEA; regression analysis; COLS; MOLS; frontier production function

Summary/Abstract: In the paper a modification of the method linking nonparametric and parametric approaches for estimation of the technical effectiveness, was presented. In contrast with the original combined method and with two methods based only on the regression analysis, the proposed method is exploiting the property of invariance which is characteristic for nonparametric DEA under assumption of output maximization and variable returns to scale. Investigations were illustrated using data, at the regional level, in reference to regions represented by field crop farms. The estimates of efficiencies obtained by the proposed method appear to be the most correlated with that following from DEA, and at the same time they are more diversified.

  • Issue Year: XII/2011
  • Issue No: 2
  • Page Range: 80-90
  • Page Count: 11
  • Language: Polish