Narrow search
Showing 1 - 10 of 63
Cover Image
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
Cover Image
Endogenous dynamic efficiency in the intertemporal optimization models of firm behavior
Tsionas, Efthymios G.; Malikov, Emir; Kumbhakar, Subal - In: European journal of operational research : EJOR 284 (2020) 1, pp. 313-324
Persistent link: https://www.econbiz.de/10012238677
Cover Image
On the estimation of technical and allocative efficiency in a panel stochastic production frontier system model : some new formulations and generalizations
Kumbhakar, Subal; Tsionas, Efthymios G. - In: European journal of operational research : EJOR 287 (2020) 2, pp. 762-775
Persistent link: https://www.econbiz.de/10012293949
Cover Image
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
Cover Image
Obituary of Mike Tsionas (1965-2024)
Kumbhakar, Subal; Mamatzakis, Emmanuel C.; Izzeldin, Marwan - In: European journal of operational research : EJOR 316 (2024) 1, pp. 2-4
Persistent link: https://www.econbiz.de/10014566250
Cover Image
Estimation of production technology when the objective is to maximize return to the outlay
Kumbhakar, Subal - In: European journal of operational research : EJOR 208 (2011) 2, pp. 170-176
Persistent link: https://www.econbiz.de/10008779596
Cover Image
Specification and estimation of primal production models
Kumbhakar, Subal - In: European journal of operational research : EJOR 217 (2012) 3, pp. 509-518
Persistent link: https://www.econbiz.de/10009419067
Cover Image
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
Cover Image
Globally flexible functional forms : the neural distance function
Michaelides, Panayotis G.; Vouldis, Angelos T.; … - In: European journal of operational research : EJOR 206 (2010) 2, pp. 456-469
Persistent link: https://www.econbiz.de/10003983707
Cover Image
Technical and allocative efficiency in European banking
Brissimis, Sophocles N.; Delēs, Manthos D.; Tsionas, … - In: European journal of operational research : EJOR 204 (2010) 1, pp. 153-163
Persistent link: https://www.econbiz.de/10003946657