mamatzakis EJOR.pdf (697.75 kB)
Further results on estimating inefficiency effects in stochastic frontier models
journal contribution
posted on 2023-06-09, 16:38 authored by Mike G Tsionas, Emmanuel MamatzakisPaul and Shankar [Satya Paul, Sriram Shankar, On Estimating Efficiency Effects in a Stochastic Fron- tier Model, European Journal of Operational Research (2018)] proposed an inefficiency effects stochas- tic frontier model which is easy to implement and avoids some of the difficulties of existing models. Unfortunately, the model has the restrictive feature that the ratio of the inefficiency effects of any two environmental variables remains fixed independently of the values of the variables. We modify the model so that this restriction can be avoided. Moreover, we provide a substantive extension of the model un- der quite general endogeneity assumptions. In turn, the model can be estimated using the Generalized Method of Moments technique allowing identification of efficiency estimates and inefficiency effects.
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Publication status
- Published
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- Accepted version
Journal
European Journal of Operational ResearchISSN
0377-2217Publisher
ElsevierExternal DOI
Issue
3Volume
275Page range
1157-1164Department affiliated with
- Accounting and Finance Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2019-01-28First Open Access (FOA) Date
2020-12-19First Compliant Deposit (FCD) Date
2019-01-25Usage metrics
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