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Productivity spillovers and human capital : a semiparametric varying coefficient approach
Hou, Zhezhi; Jin, Man; Kumbhakar, Subal - In: European journal of operational research : EJOR 287 (2020) 1, pp. 317-330
Persistent link: https://www.econbiz.de/10012293803
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Estimation of firm performance from a MIMIC model
Chaudhuri, Kausik; Kumbhakar, Subal; Sundaram, Lavanya - In: European journal of operational research : EJOR 255 (2016) 1, pp. 298-307
Persistent link: https://www.econbiz.de/10011530871
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Panel data stochastic frontier model with determinants of persistent and transient inefficiency
Lai, Hung-pin; Kumbhakar, Subal - In: European journal of operational research : EJOR 271 (2018) 2, pp. 746-755
Persistent link: https://www.econbiz.de/10011890405
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An internally consistent approach to the estimation of market power and cost efficiency with an application to U.S. banking
Tsionas, Efthymios G.; Malikov, Emir; Kumbhakar, Subal - In: European journal of operational research : EJOR 270 (2018) 2, pp. 747-760
Persistent link: https://www.econbiz.de/10011869442
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When, where and how to estimate persistent and transient efficiency in stochastic frontier panel data models
Badunkenko, Oleg; Kumbhakar, Subal - In: European journal of operational research : EJOR 255 (2016) 1, pp. 272-287
Persistent link: https://www.econbiz.de/10011530868
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Productivity and efficiency estimation : a semiparametric stochastic cost frontier approach
Sun, Kai; Kumbhakar, Subal; Tveterås, Ragnar - In: European journal of operational research : EJOR 245 (2015) 1, pp. 194-202
Persistent link: https://www.econbiz.de/10011290698
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Nonparametric estimation of the determinants of inefficiency in the presence of firm heterogeneity
Zhou, Jianhua; Parmeter, Christopher F.; Kumbhakar, Subal - In: European journal of operational research : EJOR 286 (2020) 3, pp. 1142-1152
Persistent link: https://www.econbiz.de/10012291631
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Dynamic firm performance and estimator choice : a comparison of dynamic panel data estimators
Cave, Joshua; Chaudhuri, Kausik; Kumbhakar, Subal - In: European journal of operational research : EJOR 307 (2023) 1, pp. 447-467
Persistent link: https://www.econbiz.de/10014293030
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Specification and estimation of multiple output technologies : a primal approach
Kumbhakar, Subal - In: European journal of operational research : EJOR 231 (2013) 2, pp. 465-473
Persistent link: https://www.econbiz.de/10009785480
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Stochastic frontier models with time-varying conditional variances
Tsionas, Efthymios G.; Kumbhakar, Subal - In: European journal of operational research : EJOR 292 (2021) 3, pp. 1115-1132
Persistent link: https://www.econbiz.de/10012502428