Vol. 20 No. 2 (2021): Revista UIS Ingenierías
Articles

Generator of stochastic bivariate variable applied to stochastic Bayesian DEA

Jhon Jairo Vargas-Sánchez
Universidad del Magdalena
José Adalberto Soto-Mejía
Universidad Tecnológica de Pereira

Published 2021-02-18

Keywords

  • data envelopment analysis,
  • Bayesian DEA,
  • stochastic DEA,
  • efficiencies,
  • multivariate normal distribution,
  • bivariate generator,
  • education sector,
  • simulation,
  • probability density functions,
  • nonlinear programming,
  • convex cones,
  • optimization
  • ...More
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How to Cite

Vargas-Sánchez, J. J., & Soto-Mejía, J. A. (2021). Generator of stochastic bivariate variable applied to stochastic Bayesian DEA. Revista UIS Ingenierías, 20(2), 139–150. https://doi.org/10.18273/revuin.v20n2-2021012

Abstract

The application of stochastic DEA models using Bayesian Statistics is a technique that has been emerging in recent years, to be used it, simulation of multivariate probability distributions is necessary. A bivariate generator for continuous variable will be presented. Additionally, a discretization has been created on it to achieve simulations of a posteriori distributions with easy way to apply it. Application of the generator to two functions of bivariate probability density will be presented, one of them normal, with their respective tests of goodness of fit. Data from the education sector was used in the database of the DANE (National Administrative Department of Statistics) Colombia to solve the problem of a Bayesian stochastic DEA model. The results show the utility, power and easy implementation of the generator proposed in this type of problem.

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