2025 Journal Article Sequential data envelopment analysis: decentralization and solutions for panel dataFäre, Rolf, Wang, Zhichao and Zelenyuk, Valentin (2025). Sequential data envelopment analysis: decentralization and solutions for panel data. Journal of Productivity Analysis. doi: 10.1007/s11123-024-00746-y |
2025 Journal Article Goodness-of-fit in production models: A Bayesian perspectiveTsionas, Mike, Zelenyuk, Valentin and Zhang, Xibin (2025). Goodness-of-fit in production models: A Bayesian perspective. European Journal of Operational Research. doi: 10.1016/j.ejor.2025.01.030 |
2024 Journal Article Editors' introduction to the special issue in Honor of Rolf Färe and Shawna GrosskopfZelenyuk, Valentin and Ray, Subhash (2024). Editors' introduction to the special issue in Honor of Rolf Färe and Shawna Grosskopf. Journal of Productivity Analysis, 62 (3), 1-8. doi: 10.1007/s11123-024-00737-z |
2024 Journal Article Russell and slack-based measures of efficiency: A unifying frameworkZelenyuk, Valentin and Zhao, Shirong (2024). Russell and slack-based measures of efficiency: A unifying framework. European Journal of Operational Research, 318 (3), 867-876. doi: 10.1016/j.ejor.2024.06.014 |
2024 Journal Article Statistical inference for Hicks–Moorsteen productivity indicesSimar, Léopold, Zelenyuk, Valentin and Zhao, Shirong (2024). Statistical inference for Hicks–Moorsteen productivity indices. Annals of Operations Research, 1-29. doi: 10.1007/s10479-024-06288-8 |
2024 Journal Article Inference in the nonparametric stochastic frontier modelParmeter, Christopher F., Simar, Leopold, Van Keilegom, Ingrid and Zelenyuk, Valentin (2024). Inference in the nonparametric stochastic frontier model. Econometric Reviews, 43 (7), 518-539. doi: 10.1080/07474938.2024.2339193 |
2024 Journal Article Activity‐based funding reform and the performance of public hospitals: The case of Queensland, AustraliaNguyen, Bao Hoang, Grosskopf, Shawna, Yong, Jongsay and Zelenyuk, Valentin (2024). Activity‐based funding reform and the performance of public hospitals: The case of Queensland, Australia. Economic Inquiry, 62 (4), 1679-1701. doi: 10.1111/ecin.13246 |
2024 Journal Article Inference for aggregate efficiency: theory and guidelines for practitionersSimar, Léopold, Zelenyuk, Valentin and Zhao, Shirong (2024). Inference for aggregate efficiency: theory and guidelines for practitioners. European Journal of Operational Research, 316 (1), 240-254. doi: 10.1016/j.ejor.2024.01.028 |
2024 Journal Article Performance analysis of hospitals in Australia and its peers: a systematic and critical reviewWang, Zhichao, Nguyen, Bao Hoang and Zelenyuk, Valentin (2024). Performance analysis of hospitals in Australia and its peers: a systematic and critical review. Journal of Productivity Analysis, 62 (2), 1-35. doi: 10.1007/s11123-024-00729-z |
2024 Journal Article Likelihood-ratio test for technological differences in two-stage data envelopment analysis for panel dataDu, Kai and Zelenyuk, Valentin (2024). Likelihood-ratio test for technological differences in two-stage data envelopment analysis for panel data. European Journal of Operational Research, 321 (2), 644-663. doi: 10.1016/j.ejor.2024.09.039 |
2023 Journal Article On the problem of the purchasing power of money by A. A. Konüs and S. S. Byushgens: translation and commentaryDiewert, Erwin and Zelenyuk, Valentin (2023). On the problem of the purchasing power of money by A. A. Konüs and S. S. Byushgens: translation and commentary. Journal of Productivity Analysis, 1-26. doi: 10.1007/s11123-023-00696-x |
2023 Journal Article Generalized theory for measuring efficiency of individuals and groupsZelenyuk, Valentin and Panchenko, Valentyn (2023). Generalized theory for measuring efficiency of individuals and groups. Annals of Operations Research, 332 (1-3), 781-806. doi: 10.1007/s10479-023-05599-6 |
2023 Journal Article Bayesian Artificial Neural Networks for frontier efficiency analysisTsionas, Mike, Parmeter, Christopher F. and Zelenyuk, Valentin (2023). Bayesian Artificial Neural Networks for frontier efficiency analysis. Journal of Econometrics, 236 (2) 105491. doi: 10.1016/j.jeconom.2023.105491 |
2023 Journal Article A generalized flexible functional form for α-returns to scaleMizobuchi, Hideyuki and Zelenyuk, Valentin (2023). A generalized flexible functional form for α-returns to scale. Journal of Productivity Analysis, 59 (3), 217-224. doi: 10.1007/s11123-023-00658-3 |
2023 Journal Article Aggregation in efficiency and productivity analysis: a brief review with new insights and justifications for constant returns to scaleZelenyuk, Valentin (2023). Aggregation in efficiency and productivity analysis: a brief review with new insights and justifications for constant returns to scale. Journal of Productivity Analysis, 62 (3), 1-14. doi: 10.1007/s11123-023-00671-6 |
2023 Journal Article Further improvements of finite sample approximation of central limit theorems for envelopment estimatorsSimar, Léopold, Zelenyuk, Valentin and Zhao, Shirong (2023). Further improvements of finite sample approximation of central limit theorems for envelopment estimators. Journal of Productivity Analysis, 59 (2), 189-194. doi: 10.1007/s11123-023-00661-8 |
2023 Journal Article Is newer always better? A reinvestigation of productivity dynamics using updated PWT dataMeng, Yan, Parmeter, Christopher F. and Zelenyuk, Valentin (2023). Is newer always better? A reinvestigation of productivity dynamics using updated PWT data. Journal of Productivity Analysis, 59 (1), 1-13. doi: 10.1007/s11123-022-00649-w |
2023 Journal Article Statistical inference for aggregation of Malmquist productivity indicesPham, Manh, Simar, Léopold and Zelenyuk, Valentin (2023). Statistical inference for aggregation of Malmquist productivity indices. Operations Research, 72 (4), 1615-1629. doi: 10.1287/opre.2022.2424 |
2023 Journal Article Productivity analysis: roots, foundations, trends and perspectivesZelenyuk, Valentin (2023). Productivity analysis: roots, foundations, trends and perspectives. Journal of Productivity Analysis, 60 (3), 229-247. doi: 10.1007/s11123-023-00692-1 |
2022 Journal Article Data sharpening for improving central limit theorem approximations for data envelopment analysis–type efficiency estimatorsNguyen, Bao Hoang, Simar, Léopold and Zelenyuk, Valentin (2022). Data sharpening for improving central limit theorem approximations for data envelopment analysis–type efficiency estimators. European Journal of Operational Research, 303 (3), 1469-1480. doi: 10.1016/j.ejor.2022.03.038 |