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National culture and eco-efficiency : an application of conditional partial nonparametric frontiers

Halkos, George E.; Tzeremes, Nickolaos G. - In: Environmental economics and policy studies 15 (2013) 4, pp. 423-441

Persistent link: https://www.econbiz.de/10010223114

Evaluating alternative Frequentist inferential approaches for optimal order quantities in the newsvendor model under Exponential demand

Halkos, George E.; Kevork, Ilias S. - In: International transactions in operational research : … 20 (2013) 6, pp. 837-857

Persistent link: https://www.econbiz.de/10010210910

Critical values for testing a unit root in finite samples from the MA(1)

Halkos, George E.; Kevork, Illias S. - In: Applied economics letters 14 (2007) 1/3, pp. 191-195

Persistent link: https://www.econbiz.de/10003448468

Testing for a unit root under the alternative hypothesis of ARIMA (0,2,1)

Halkos, George E.; Kevork, Ilias S. - In: Applied economics 39 (2007) 19/21, pp. 2753-2767

Persistent link: https://www.econbiz.de/10003609512

An application of statistical interference in DEA models : an analysis of public owned university departments' efficiency

Halkos, George E.; Tzeremes, Nickolaos G.; Kourtzidis, … - 2010

This paper uses Data Envelopment Analysis (DEA) model formulations in order to determine the performance levels of 16 departments of the University of Thessaly. Particularly, the constant returns to scale (CRS) and variable returns to scale (VRS) models have been applied alongside with bootstrap...

Persistent link: https://www.econbiz.de/10011524091

Programming identification criteria in simultaneous equation models

Halkos, George E.; Tsilika, Kyriaki D. - In: Computational economics 46 (2015) 1, pp. 157-170

Persistent link: https://www.econbiz.de/10011441048

On the existence of unique minimum for the cost function in a (Q,R) inventory model with backorders

Halkos, George E.; Kevork, Ilias S.; Tziourtzioumis, … - In: IMA journal of management mathematics 29 (2018) 1, pp. 1-21

Persistent link: https://www.econbiz.de/10011858922