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Department of Economics, WU (Wirtschaftsuniversität Wien) Working papers, Department of Economics, WU (Wirtschaftsuniversität Wien)

No 58:
Small Sample Performance of Two Approaches to Technical Efficiency Estimation with Multiple Outputs

Dieter Gstach ()

Abstract: This paper provides simulation evidence concerning some statistical properties of two different approaches to technical efficiency estimation for multiple-output production under noisy conditions: The Ray Frontier Approach (RFA) from Löthgren (1997) DEA+ proposed in Gstach (1996). RFA, unlike earlier approaches in the realm of stochastic frontier analysis, is capable of efficiency estimation in the case of multiple outputs as well and lends itself for comparison with DEA+. Several settings with varying sample sizes, noise to signal ratios and mean inefficiencies are investigated.

Keywords: Stochastic DEA; Ray Frontier Approach; Multiple Outputs; Monte-Carlo Analysis; Frontier Estimation; Efficiency Estimation; (follow links to similar papers)

JEL-Codes: D24; C15; (follow links to similar papers)

June 1998

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