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Robust estimation in stochastic frontier models

Junmo Song, Dong-hyun Oh and Jiwon Kang

Computational Statistics & Data Analysis, 2017, vol. 105, issue C, 243-267

Abstract: This study proposes a robust estimator for stochastic frontier models by integrating the idea of Basu et al. (1998) into such models. It is shown that the suggested estimator is strongly consistent and asymptotic normal under regularity conditions. The robust properties of the proposed approach are also investigated. A simulation study demonstrates that the estimator has strong robust properties with little loss in asymptotic efficiency relative to the maximum likelihood estimator. Finally, a real data analysis is performed to illustrate the use of the estimator.

Keywords: Stochastic frontier model; Outliers; Robustness; Minimum density power divergence estimator (search for similar items in EconPapers)
Date: 2017
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Handle: RePEc:eee:csdana:v:105:y:2017:i:c:p:243-267