Journal Article: On the problem of the purchasing power of money by A. A. Konüs and S. S. Byushgens: translation and commentary
Diewert, 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. doi: 10.1007/s11123-023-00696-x
Journal Article: Generalized theory for measuring efficiency of individuals and groups
Zelenyuk, Valentin and Panchenko, Valentyn (2023). Generalized theory for measuring efficiency of individuals and groups. Annals of Operations Research. doi: 10.1007/s10479-023-05599-6
Journal Article: Bayesian Artificial Neural Networks for frontier efficiency analysis
Tsionas, 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
Improving Productivity: Theory and Application to Australian Hospitals
(2017–2023) ARC Future Fellowships
(2013–2018) ARC Discovery Projects
Productivity and efficiency analysis: Theory and application to Australian hospitals
Doctor Philosophy
(2022) Doctor Philosophy
Advanced mathematical methods for performance analysis
(2019) Doctor Philosophy
Measurement of productivity and efficiency: theory and practice
Sickles, Robin C. and Zelenyuk, Valentin (2019). Measurement of productivity and efficiency: theory and practice. Cambridge, United Kingdom: Cambridge University Press. doi: 10.1017/9781139565981
Aggregation of efficiency and productivity: from firm to sector and higher levels
Zelenyuk, Valentin (2022). Aggregation of efficiency and productivity: from firm to sector and higher levels. Handbook of production economics. (pp. 1039-1079) edited by Subhash C. Ray, Robert G. Chambers and Subal C. Kumbhakar. Singapore, Singapore: Springer Singapore. doi: 10.1007/978-981-10-3455-8_19
Efficiency analysis with stochastic frontier models using popular statistical softwares
Nguyen, Bao Hoang, Sickles, Robin C. and Zelenyuk, Valentin (2022). Efficiency analysis with stochastic frontier models using popular statistical softwares. Advances in economic measurement: a volume in honour of D. S. Prasada Rao. (pp. 129-171) edited by Duangkamon Chotikapanich, Alicia N. Rambaldi and Nicholas Rohde. Singapore, Singapore: Palgrave Macmillan. doi: 10.1007/978-981-19-2023-3_3
Stochastic frontier analysis: foundations and advances I
Kumbhakar, Subal C., Parmeter, Christopher F. and Zelenyuk, Valentin (2022). Stochastic frontier analysis: foundations and advances I. Handbook of production economics. (pp. 331-370) edited by Subhash C. Ray, Robert G. Chambers and Subal C. Kumbhakar. Singapore, Singapore: Springer Singapore. doi: 10.1007/978-981-10-3455-8_9
Stochastic frontier analysis: foundations and advances II
Kumbhakar, Subal C., Parmeter, Christopher F. and Zelenyuk, Valentin (2022). Stochastic frontier analysis: foundations and advances II. Handbook of production economics. (pp. 371-408) edited by Subhash C. Ray, Robert G. Chambers and Subal C. Kumbhakar. Singapore, Singapore: Springer Singapore. doi: 10.1007/978-981-10-3455-8_11
Nguyen, Bao Hoang and Zelenyuk, Valentin (2021). Aggregation of outputs and inputs for DEA analysis of hospital efficiency: economics, operations research and data science perspectives. Data-enabled analytics: DEA for Big Data. (pp. 123-158) edited by Joe Zhu and Vincent Charles. Cham, Switzerland: Springer International Publishing. doi: 10.1007/978-3-030-75162-3_5
Zelenyuk, Natalya and Zelenyuk, Valentin (2021). Bank performance analysis. Handbook of research methods and applications in empirical microeconomics. (pp. 238-279) edited by Nigar Hashimzade and Michael A. Thornton. Cheltenham, United Kingdom: Edward Elgar Publishing. doi: 10.4337/9781788976480.00016
Robust efficiency analysis of public hospitals in Queensland, Australia
Nguyen, Bao Hoang and Zelenyuk, Valentin (2021). Robust efficiency analysis of public hospitals in Queensland, Australia. Advances in contemporary statistics and econometrics: festschrift in honor of Christine Thomas-Agnan. (pp. 221-242) edited by Abdelaati Daouia and Anne Ruiz-Gazen. Cham, Switzerland: Springer . doi: 10.1007/978-3-030-73249-3_12
Econometric analysis of productivity: theory and implementation in R
Sickles, Robin C., Song, Wonho and Zelenyuk, Valentin (2020). Econometric analysis of productivity: theory and implementation in R. Financial, Macro and Micro Econometrics Using R. (pp. 267-297) edited by Hrishikesh D. Vinod and C.R. Rao. Amsterdam, Netherlands: Elsevier. doi: 10.1016/bs.host.2018.11.007
Aggregation of individual efficiency measures and productivity indices
Mayer, Andreas and Zelenyuk, Valentin (2019). Aggregation of individual efficiency measures and productivity indices. The Palgrave handbook of economic performance analysis. (pp. 527-557) edited by Thijs ten Raa and William H. Greene. London, United Kingdom: Palgrave Macmillan. doi: 10.1007/978-3-030-23727-1_14
Badunenko, Oleg, Henderson, Daniel J. and Zelenyuk, Valentin (2018). The productivity of nations. The Oxford handbook of productivity analysis. (pp. 780-816) edited by Emili Grifell-Tatjé, C. A. Knox Lovell and Robin C. Sickles. Oxford, United Kingdom: Oxford University Press. doi: 10.1093/oxfordhb/9780190226718.013.24
Production efficiency versus ownership: the case of China
Shiu, Alice and Zelenyuk, Valentin (2012). Production efficiency versus ownership: the case of China. Exploring research frontiers in contemporary statistics and econometrics. (pp. 23-44) edited by Ingrid Van Keilegom and Paul W. Wilson. Heidelberg, Germany: Springer. doi: 10.1007/978-3-7908-2349-3_2
Finding common ground: Efficiency indices
Färe, Rolf, Grosskopf, Shawna and Zelenyuk, Valentin (2007). Finding common ground: Efficiency indices. Aggregation, efficiency, and measurement. (pp. 83-95) edited by Rolf Fare, Shawna Grosskopf and Daniel Primont. New York, United States: Springer. doi: 10.1007/978-0-387-47677-3_5
Diewert, 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. doi: 10.1007/s11123-023-00696-x
Generalized theory for measuring efficiency of individuals and groups
Zelenyuk, Valentin and Panchenko, Valentyn (2023). Generalized theory for measuring efficiency of individuals and groups. Annals of Operations Research. doi: 10.1007/s10479-023-05599-6
Bayesian Artificial Neural Networks for frontier efficiency analysis
Tsionas, 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
A generalized flexible functional form for α-returns to scale
Mizobuchi, 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
Zelenyuk, 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, 1-14. doi: 10.1007/s11123-023-00671-6
Simar, 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
Is newer always better? A reinvestigation of productivity dynamics using updated PWT data
Meng, 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
Statistical inference for aggregation of Malmquist productivity indices
Pham, Manh, Simar, Léopold and Zelenyuk, Valentin (2023). Statistical inference for aggregation of Malmquist productivity indices. Operations Research. doi: 10.1287/opre.2022.2424
Productivity analysis: roots, foundations, trends and perspectives
Zelenyuk, Valentin (2023). Productivity analysis: roots, foundations, trends and perspectives. Journal of Productivity Analysis, 60 (3), 229-247. doi: 10.1007/s11123-023-00692-1
Nguyen, 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
Performance analysis: economic foundations and trends
Zelenyuk, Valentin (2021). Performance analysis: economic foundations and trends. Foundations and Trends in Econometrics, 11 (3), 153-229. doi: 10.1561/0800000034
Quadratic-mean-of-order-r indexes of output, input and productivity
Mizobuchi, Hideyuki and Zelenyuk, Valentin (2021). Quadratic-mean-of-order-r indexes of output, input and productivity. Journal of Productivity Analysis, 56 (2-3), 133-138. doi: 10.1007/s11123-021-00613-0
LASSO+DEA for small and big wide data
Chen, Ya, Tsionas, Mike G. and Zelenyuk, Valentin (2021). LASSO+DEA for small and big wide data. Omega , 102 102419, 102419. doi: 10.1016/j.omega.2021.102419
Hicks neutrality and homotheticity in technologies with multiple inputs and multiple outputs
Färe, Rolf, Mizobuchi, Hideyuki and Zelenyuk, Valentin (2021). Hicks neutrality and homotheticity in technologies with multiple inputs and multiple outputs. Omega, 101 102240. doi: 10.1016/j.omega.2020.102240
Predicting recessions with a frontier measure of output gap: an application to Italian economy
Mastromarco, Camilla, Simar, Léopold and Zelenyuk, Valentin (2021). Predicting recessions with a frontier measure of output gap: an application to Italian economy. Empirical Economics, 60 (6), 2701-2740. doi: 10.1007/s00181-021-02029-z
On aggregation of multi-factor productivity indexes
Färe, Rolf and Zelenyuk, Valentin (2021). On aggregation of multi-factor productivity indexes. Journal of Productivity Analysis, 55 (2), 107-133. doi: 10.1007/s11123-021-00598-w
Sequential data envelopment analysis
Färe, Rolf and Zelenyuk, Valentin (2021). Sequential data envelopment analysis. Annals of Operations Research, 300 (1), 307-312. doi: 10.1007/s10479-020-03924-x
Aggregate efficiency of industry and its groups: the case of Queensland public hospitals
Nguyen, Bao Hoang and Zelenyuk, Valentin (2021). Aggregate efficiency of industry and its groups: the case of Queensland public hospitals. Empirical Economics, 60 (6), 2795-2836. doi: 10.1007/s00181-020-01994-1
Profit efficiency: generalization, business accounting and the role of convexity
Färe, Rolf and Zelenyuk, Valentin (2020). Profit efficiency: generalization, business accounting and the role of convexity. Economics Letters, 196 109483. doi: 10.1016/j.econlet.2020.109483
Simar, Léopold and Zelenyuk, Valentin (2020). Improving finite sample approximation by central limit theorems for estimates from Data Envelopment Analysis. European Journal of Operational Research, 284 (3), 1002-1015. doi: 10.1016/j.ejor.2020.01.036
Aggregation of inputs and outputs prior to Data Envelopment Analysis under big data
Zelenyuk, Valentin (2020). Aggregation of inputs and outputs prior to Data Envelopment Analysis under big data. European Journal of Operational Research, 282 (1), 172-187. doi: 10.1016/j.ejor.2019.08.007
Combining the virtues of stochastic frontier and data envelopment analysis
Parmeter, Christopher F. and Zelenyuk, Valentin (2019). Combining the virtues of stochastic frontier and data envelopment analysis. Operations Research, 67 (6) opre.2018.1831, 1628-1658. doi: 10.1287/opre.2018.1831
On Luenberger input, output and productivity indicators
Färe, Rolf and Zelenyuk, Valentin (2019). On Luenberger input, output and productivity indicators. Economics Letters, 179, 72-74. doi: 10.1016/j.econlet.2019.03.024
Park, Byeong U., Simar, Léopold and Zelenyuk, Valentin (2019). Forecasting of recessions via dynamic probit for time series: replication and extension of Kauppi and Saikkonen (2008). Empirical Economics, 58 (1), 379-392. doi: 10.1007/s00181-019-01708-2
Weak disposability in nonparametric production analysis: a new taxonomy of reference technology sets
Pham, Manh D. and Zelenyuk, Valentin (2019). Weak disposability in nonparametric production analysis: a new taxonomy of reference technology sets. European Journal of Operational Research, 274 (1), 186-198. doi: 10.1016/j.ejor.2018.09.019
A unifying framework for farrell profit efficiency measurement
Färe, Rolf, He, Xinju, Li, Sungko and Zelenyuk, Valentin (2019). A unifying framework for farrell profit efficiency measurement. Operations Research, 67 (1), 183-197. doi: 10.1287/opre.2018.1770
Du, Kai, Worthington, Andrew C. and Zelenyuk, Valentin (2018). Data envelopment analysis, truncated regression and double-bootstrap for panel data with application to Chinese banking. European Journal of Operational Research, 265 (2), 748-764. doi: 10.1016/j.ejor.2017.08.005
Pham, Manh D. and Zelenyuk, Valentin (2018). Slack-based directional distance function in the presence of bad outputs: theory and application to Vietnamese banking. Empirical Economics, 54 (1), 1-35. doi: 10.1007/s00181-017-1232-7
Central limit theorems for aggregate efficiency
Simar, Leopold and Zelenyuk, Valentin (2018). Central limit theorems for aggregate efficiency. Operations Research, 66 (1), 137-149. doi: 10.1287/opre.2017.1655
Nonparametric least squares methods for stochastic frontier models
Simar, Léopold, Van Keilegom, Ingrid and Zelenyuk, Valentin (2017). Nonparametric least squares methods for stochastic frontier models. Journal of Productivity Analysis, 47 (3), 189-204. doi: 10.1007/s11123-016-0474-2
Introduction to the APPC2014 special issue
Peyrache, Antonio and Zelenyuk, Valentin (2017). Introduction to the APPC2014 special issue. Journal of Productivity Analysis, 47 (3), 185-187. doi: 10.1007/s11123-017-0506-6
Nonparametric estimation of dynamic discrete choice models for time series data
Park, Byeong U., Simar, Léopold and Zelenyuk, Valentin (2017). Nonparametric estimation of dynamic discrete choice models for time series data. Computational Statistics and Data Analysis, 108, 97-120. doi: 10.1016/j.csda.2016.10.024
Simper, Richard, Hall, Maximilian J. B., Liu, WenBin, Zelenyuk, Valentin and Zhou, Zhongbao (2017). How relevant is the choice of risk management control variable to non-parametric bank profit efficiency analysis? The case of South Korean banks. Annals of Operations Research, 250 (1), 105-127. doi: 10.1007/s10479-015-1946-x
Performance of hospital services in Ontario: DEA with truncated regression approach
Chowdhury, Hedayet and Zelenyuk, Valentin (2016). Performance of hospital services in Ontario: DEA with truncated regression approach. Omega, 63, 111-122. doi: 10.1016/j.omega.2015.10.007
Generalized nonparametric smoothing with mixed discrete and continuous data
Li, Degui, Simar, Leopold and Zelenyuk, Valentin (2016). Generalized nonparametric smoothing with mixed discrete and continuous data. Computational Statistics and Data Analysis, 100, 1-21. doi: 10.1016/j.csda.2014.06.003
Cost decompositions and the efficient subset
Färe, Rolf, Fukuyama, Hirofumi, Grosskopf, Shawna and Zelenyuk, Valentin (2016). Cost decompositions and the efficient subset. Omega, 62, 123-130. doi: 10.1016/j.omega.2015.09.004
Decomposing profit efficiency using a slack-based directional distance function
Färe, Rolf, Fukuyama, Hirofumi, Grosskopf, Shawna and Zelenyuk, Valentin (2015). Decomposing profit efficiency using a slack-based directional distance function. European Journal of Operational Research, 247 (1), 335-337. doi: 10.1016/j.ejor.2015.05.047
Categorical data in local maximum likelihood: theory and applications to productivity analysis
Park, Byeong U., Simar, Leopold and Zelenyuk, Valentin (2015). Categorical data in local maximum likelihood: theory and applications to productivity analysis. Journal of Productivity Analysis, 43 (2), 199-214. doi: 10.1007/s11123-014-0394-y
Aggregation of scale efficiency
Zelenyuk, Valentin (2015). Aggregation of scale efficiency. European Journal of Operational Research, 240 (1), 269-277. doi: 10.1016/j.ejor.2014.06.038
Curi, Claudia, Lozano-Vivas, Ana and Zelenyuk, Valentin (2015). Foreign bank diversification and efficiency prior to and during the financial crisis: does one business model fit all?. Journal of Banking and Finance, 61, S22-S35. doi: 10.1016/j.jbankfin.2015.04.019
Pricing of decision-making units under non-constant returns to scale
Färe, Rolf and Zelenyuk, Valentin (2015). Pricing of decision-making units under non-constant returns to scale. Journal of the Operational Research Society, 66 (1), 172-173. doi: 10.1057/jors.2013.161
Aggregation of Malmquist productivity indexes allowing for reallocation of resources
Mayer, Andreas and Zelenyuk, Valentin (2014). Aggregation of Malmquist productivity indexes allowing for reallocation of resources. European Journal of Operational Research, 238 (3), 774-785. doi: 10.1016/j.ejor.2014.04.003
Scale efficiency and homotheticity: equivalence of primal and dual measures
Zelenyuk, Valentin (2014). Scale efficiency and homotheticity: equivalence of primal and dual measures. Journal of Productivity Analysis, 42 (1), 15-24. doi: 10.1007/s11123-013-0361-z
Chowdhury, Hedayet, Zelenyuk, Valentin, Laporte, Audrey and Wodchis, Walter P. (2014). Analysis of productivity, efficiency and technological changes in hospital services in Ontario: how does case-mix matter?. International Journal of Production Economics, 150, 74-82. doi: 10.1016/j.ijpe.2013.12.003
Directional vs. Shephard's distance functions
Zelenyuk, Valentin (2014). Directional vs. Shephard's distance functions. Optimization Letters, 8 (8), 2185-2189. doi: 10.1007/s11590-014-0726-x
Zelenyuk, Valentin (2014). Testing Significance of Contributions in Growth Accounting, with Application to Testing ICT Impact on Labor Productivity of Developed Countries. International Journal of Business and Economics, 13 (2), 115-126.
A scale elasticity measure for directional distance function and its dual: theory and DEA estimation
Zelenyuk, Valentin (2013). A scale elasticity measure for directional distance function and its dual: theory and DEA estimation. European Journal of Operational Research, 228 (3), 592-600. doi: 10.1016/j.ejor.2013.01.012
A note on equivalences in measuring returns to scale
Zelenyuk, Valentin (2013). A note on equivalences in measuring returns to scale. International Journal of Business and Economics, 12 (1), 85-89.
Is foreign-bank efficiency in financial centers driven by home or host country characteristics?
Curi, Claudia, Guarda, Paolo, Lozano-Vivas, Ana and Zelenyuk, Valentin (2012). Is foreign-bank efficiency in financial centers driven by home or host country characteristics?. Journal of Productivity Analysis, 40 (3), 367-385. doi: 10.1007/s11123-012-0294-y
Aggregation of scale elasticities across firms
Fare, Rolf and Zelenyuk, Valentin (2012). Aggregation of scale elasticities across firms. Applied Economics Letters, 19 (16), 1593-1597. doi: 10.1080/13504851.2011.641923
Stochastic FDH/DEA estimators for frontier analysis
Simar, Leopold and Zelenyuk, Valentin (2011). Stochastic FDH/DEA estimators for frontier analysis. Journal of Productivity Analysis, 36 (1), 1-20. doi: 10.1007/s11123-010-0170-6
Aggregation of economic growth rates and of its sources
Zelenyuk, Valentin (2011). Aggregation of economic growth rates and of its sources. European Journal of Operational Research, 212 (1), 190-198. doi: 10.1016/j.ejor.2011.01.008
Comparative analysis of banking production frameworks in Eastern European financial markets
Kenjegalieva, Karligash, Simper, Richard, Weyman-Jones, Tom and Zelenyuk, Valentin (2009). Comparative analysis of banking production frameworks in Eastern European financial markets. European Journal of Operational Research, 198 (1), 326-340. doi: 10.1016/j.ejor.2008.09.002
Power of significance test of dummy variables in two-stage efficiency analysis model
Zelenyuk, Valentin (2009). Power of significance test of dummy variables in two-stage efficiency analysis model. Applied Economics Letters, 16 (15), 1493-1495. doi: 10.1080/13504850701578884
Testing differences in efficiency of regions within a country: The case of Ukraine
Demchuk, Pavlo and Zelenyuk, Valentin (2009). Testing differences in efficiency of regions within a country: The case of Ukraine. Journal of Productivity Analysis, 32 (2), 81-102. doi: 10.1007/s11123-009-0136-8
Park, Byeong U., Simar, Leopold and Zelenyuk, Valentin (2008). Local likelihood estimation of truncated regression and its partial derivatives: Theory and application. Journal of Econometrics, 146 (1), 185-198. doi: 10.1016/j.jeconom.2008.08.007
Introduction for Journal of Productivity Analysis special issue on transitioning economics
Li, Sung-ko, Simar, Léopold, Wilson, Paul W. and Zelenyuk, Valentin (2008). Introduction for Journal of Productivity Analysis special issue on transitioning economics. Journal of Productivity Analysis, 29 (2), 77-77. doi: 10.1007/s11123-007-0067-1
Aggregation of Nerlovian profit indicator
Fare, Rolf, Grosskopf, Shawna and Zelenyuk, Valentin (2008). Aggregation of Nerlovian profit indicator. Applied Economics Letters, 15 (11), 845-847. doi: 10.1080/13504850600825584
Technological change and transition: Relative contributions to worldwide growth during the 1990s
Zelenyuk, Valentin, Badunenko, Oleg and Henderson, Daniel (2008). Technological change and transition: Relative contributions to worldwide growth during the 1990s. Oxford Bulletin of Economics And Statistics, 70 (4), 461-492. doi: 10.1111/j.1468-0084.2008.00508.x
Extending Fare and Zelenyuk (2003)
Fare, Rolf and Zelenyuk, Valentin (2007). Extending Fare and Zelenyuk (2003). European Journal of Operational Research, 179 (2), 594-595. doi: 10.1016/j.ejor.2006.04.008
Testing for (efficiency) catching-up
Zelenyuk, Valentin and Henderson, Daniel (2007). Testing for (efficiency) catching-up. Southern Economic Journal, 73 (4), 1003-1019.
Measuring potential gains from reallocation of resources
Nesterenko, Vladimir and Zelenyuk, Valentin (2007). Measuring potential gains from reallocation of resources. Journal of Productivity Analysis, 28 (1), 107-116. doi: 10.1007/s11123-007-0051-9
Statistical inference for aggregates of Farrell-type efficiencies
Simar, Leopold and Zelenyuk, Valentin (2007). Statistical inference for aggregates of Farrell-type efficiencies. Journal of Applied Econometrics, 22 (7), 1367-1394. doi: 10.1002/jae.991
Aggregation of Malmquist productivity indexes
Zelenyuk, Valentin (2006). Aggregation of Malmquist productivity indexes. European Journal of Operational Research, 174 (2), 1076-1086. doi: 10.1016/j.ejor.2005.02.061
Corporate governance and firm's efficiency: The case of a transitional country, Ukraine
Zelenyuk, Valentin and Zheka, Vitaliy (2006). Corporate governance and firm's efficiency: The case of a transitional country, Ukraine. Journal of Productivity Analysis, 25 (1-2), 143-157. doi: 10.1007/s11123-006-7136-8
On testing equality of distributions of technical efficiency scores
Simar, Leopold and Zelenyuk, Valentin (2006). On testing equality of distributions of technical efficiency scores. Econometric Reviews, 25 (4), 497-522. doi: 10.1080/07474930600972582
On Farrell’s Decomposition and Aggregation
Fare, Rolf and Zelenyuk, Valentin (2005). On Farrell’s Decomposition and Aggregation. International Journal of Business and Economics, 4 (2), 167-171.
Aggregation bias and its bounds in measuring technical efficiency
Färe, Rolf, Grosskopf, Shawna and Zelenyuk, Valentin (2004). Aggregation bias and its bounds in measuring technical efficiency. Applied Economics Letters, 11 (10), 657-660. doi: 10.1080/1350485042000207243
On aggregate Farrell efficiencies
Färe, Rolf and Zelenyuk, Valentin (2003). On aggregate Farrell efficiencies. European Journal of Operational Research, 146 (3), 615-620. doi: 10.1016/S0377-2217(02)00259-X
Discussion on the paper by Stone
Färe, Rolf, Grosskopf, Shawna and Zelenyuk, Valentin (2002). Discussion on the paper by Stone. Journal of the Royal Statistical Society. Series A: Statistics in Society, 165 (3), 429-430. doi: 10.1111/1467-985x.02462
Input aggregation and technical efficiency
Färe, Rolf and Zelenyuk, Valentin (2002). Input aggregation and technical efficiency. Applied Economics Letters, 9 (10), 635-636. doi: 10.1080/13504850110118165
Comans, Tracy, Nguyen, Kim-Huong, Zelenyuk, Valentin, Gray, Len, Tran, Alice, Nguyen, Bao, Wang, Zhichao and Moretto, Nicole (2020). Research Paper 9 - The cost of residential aged care. Royal Commission into Aged Care Quality and Safety. Canberra, ACT, Australia: Royal Commission into Aged Care Qualtiy and Safety.
Aggregation of efficiency and productivity: from firm to sector and higher levels
Zelenyuk, Valentin (2019). Aggregation of efficiency and productivity: from firm to sector and higher levels. CEPA Working Paper Series. WP06/2019. School of Economics, University of Queensland.
Data envelopment analysis and business analytics: the big data challenges and some solutions
Zelenyuk, Valentin (2019). Data envelopment analysis and business analytics: the big data challenges and some solutions. CEPA Working Paper Series. WP07/2019. School of Economics, University of Queensland.
Hicks neutrality and homotheticity in technologies with multiple inputs and multiple outputs
Färe, Rolf, Mizobuchi, Hideyuki and Zelenyuk, Valentin (2019). Hicks neutrality and homotheticity in technologies with multiple inputs and multiple outputs. CEPA Working Paper Series. WP09/2019. School of Economics, University of Queensland.
On Paasche and Laspeyers Malmquist indexes: a comment on Diewert and Fox (2017)
Färe, Rolf and Zelenyuk, Valentin (2019). On Paasche and Laspeyers Malmquist indexes: a comment on Diewert and Fox (2017). CEPA Working Paper Series. WP04/2019. School of Economics, University of Queensland.
Statistical inference for aggregation of Malmquist productivity indices
Pham, Manh D., Simar, Leopold and Zelenyuk, Valentin (2019). Statistical inference for aggregation of Malmquist productivity indices. CEPA Working Paper Series. WP08/2019. School of Economics, University of Queensland.
Aggregation of individual efficiency measures and productivity indices
Mayer, Andreas and Zelenyuk, Valentin (2018). Aggregation of individual efficiency measures and productivity indices. CEPA Working Paper Series. WP01/2018. School of Economics, University of Queensland.
Improving finite sample approximation by central limit theorems for DEA and FDH efficiency scores
Simar, Leopold and Zelenyuk, Valentin (2018). Improving finite sample approximation by central limit theorems for DEA and FDH efficiency scores. CEPA Working Paper Series. WP07/2018. School of Economics, University of Queensland.
Measuring productivity by quadratic-mean-of-order-r indexes
Mizobuchi, Hideyuki and Zelenyuk, Valentin (2018). Measuring productivity by quadratic-mean-of-order-r indexes. CEPA Working Paper Series. WP06/2018. School of Economics, University of Queensland.
Profit efficiency, DEA, FDH and big data
Zelenyuk, Valentin (2018). Profit efficiency, DEA, FDH and big data. CEPA Working Paper Series. WP04/2018. School of Economics, University of Queensland.
Zelenyuk, Valentin (2018). Some mathematical and historical clarification on aggregation in efficiency and productivity analysis and connection to economic theory. CEPA Working Paper Series. WP03/2018. School of Economics, University of Queensland.
Stochastic frontier analysis: foundations and advances
Kumbhakar, Subal C., Parameter, Christopher F. and Zelenyuk, Valentin (2018). Stochastic frontier analysis: foundations and advances. CEPA Working Paper Series. WP02/2018. School of Economics, University of Queensland.
Convexity, disposability and returns to scale in production analysis
Pham, Manh D. and Zelenyuk, Valentin (2017). Convexity, disposability and returns to scale in production analysis. CEPA Working Paper Series. WP04/2017. School of Economics, University of Queensland.
Park, Byeong U., Simar, Leopold and Zelenyuk, Valentin (2017). Revisiting forecasting of recessions via dynamic probit for time series by Kauppi and Saikkonen (2008). CEPA Working Paper Series. WP03/2017. School of Economics, University of Queensland.
Asymptotic theory for aggregate efficiency
Simar, Leopold and Zelenyuk, Valentin (2016). Asymptotic theory for aggregate efficiency. CEPA Working Paper Series. WP04/2016. School of Economics, University of Queensland.
Bootstrap-based testing for network DEA: Some Theory and Applications
Zelenyuk, Valentin and Trinh, Kelly (2015). Bootstrap-based testing for network DEA: Some Theory and Applications. CEPA Working Paper Series. WP05/2015. School of Economics, University of Queensland.
Zelenyuk, Valentin, Curi, Claudia and Lozano-Vivas, Ana (2015). Foreign bank diversification and efficiency prior to and during the financial crisis: Does one business model fit all?. CEPA Working Paper Series. WP04/2015. School of Economics, University of Queensland.
Productivity drivers of efficiency in banking: importance of model specifications
Zelenyuk, Natalya and Zelenyuk, Valentin (2015). Productivity drivers of efficiency in banking: importance of model specifications. CEPA Working Paper Series. WP08/2015. School of Economics, University of Queensland.
Productivity growth and convergence: revisiting Kumar and Russell (2002)
Trinh, Kelly D.T. and Zelenyuk, Valentin (2015). Productivity growth and convergence: revisiting Kumar and Russell (2002). CEPA Working Paper Series. WP11/2015. School of Economics, University of Queensland.
Worthington, Andrew C., Du, Kai and Zelenyuk, Valentin (2015). The dynamic relationship between bank asset diversification and efficiency: evidence from the Chinese banking sector. CEPA Working Paper Series. WP12/2015. School of Economics, University of Queensland.
Regional and Ownership Drivers of Bank Efficiency
Zelenyuk, Valentin and Zelenyuk, Natalya (2014). Regional and Ownership Drivers of Bank Efficiency. Working Paper. WP11/2014. School of Economics, University of Queensland.
Cost Decompositions and the Efficient Subset
Zelenyuk, Valentin, Grosskoph, Shawna, Fukuyama, Hirofumi and Fare, Rolf (2014). Cost Decompositions and the Efficient Subset. CEPA Working Paper Series. WP01/2015. School of Economics, University of Queensland.
Zelenyuk, Valentin, Zhou, Zhongbao, Liu, Wen B., Hall, Maximillian J.B. and Simper, Richard (2014). How Relevant is the Choice of Risk Management Control Variable to Non-parametric Bank Profit Efficiency Analysis?. Working Paper. WP12/2014. School of Economics, University of Queensland.
Decomposing Profit Efficiency using a Slack-based Directional Distance Function
Zelenyuk, Valentin, Grosskopf, Shawna, Fukuyama, Hirofumi and Fare, Rolf (2014). Decomposing Profit Efficiency using a Slack-based Directional Distance Function. Working Paper. WP09/2014. School of Economics, University of Queensland.
Nonparametric Least Squares Methods for Stochastic Frontier Models
Zelenyuk, Valentin, Van Keilegom, Ingrid and Simar, Leopold (2014). Nonparametric Least Squares Methods for Stochastic Frontier Models. Working Paper. WP03/2014. School of Economics, University of Queensland.
An Aggregation Paradigm for Hicks-Moorsteen Productivity Indexes
Zelenyuk, Valentin and Mayer, Andreas (2014). An Aggregation Paradigm for Hicks-Moorsteen Productivity Indexes. Working Paper. WP01/2014. School of Economics, University of Queensland.
Non-Parametric Approach to Dynamic Time Series Discrete Choice Models
Zelenyuk, Valentin, Park, Byeong U. and Simar, Leopold (2013). Non-Parametric Approach to Dynamic Time Series Discrete Choice Models. Working Paper. WP09/2013. School of Economics, University of Queensland.
Aggregation of Malmquist productivity Indexes allowing for Reallocation of Resources
Zelenyuk, Valentin and Mayer, Andreas (2013). Aggregation of Malmquist productivity Indexes allowing for Reallocation of Resources. Working Paper. WP06/2013. School of Economics, University of Queensland.
Scale Efficiency and Homotheticity: Equivalence of Primal and Dual Measures
Zelenyuk, Valentin (2013). Scale Efficiency and Homotheticity: Equivalence of Primal and Dual Measures. Working Paper. WP02/2013. School of Economics, University of Queensland.
Pricing of Decision Making Units under Non-constant Returns to Scale
Zelenyuk, Valentin and Fare, Rolf (2013). Pricing of Decision Making Units under Non-constant Returns to Scale. Working Paper. WP01/2013. School of Economics, University of Queensland.
A Scale Elasticity Measure for Directional Distance Function and its Dual: Theory and DEA Estimation
Zelenyuk, Valentin (2012). A Scale Elasticity Measure for Directional Distance Function and its Dual: Theory and DEA Estimation. Working Paper. WP07/2012. School of Economics, University of Queensland.
Aggregation of Scale Efficiency
Zelenyuk, Valentin (2012). Aggregation of Scale Efficiency. Working Paper. WP04/2012. School of Economics, University of Queensland.
Scale Efficiency: Equivalence of Primal and Dual Measures
Zelenyuk, Valentin (2011). Scale Efficiency: Equivalence of Primal and Dual Measures. Working Paper. WP09/2011. School of Economics, University of Queensland.
To Smooth or Not to Smooth? The Case of Discrete Variables in Nonparametric Regressions
Zelenyuk, Valentin and Simar, Leopold (2011). To Smooth or Not to Smooth? The Case of Discrete Variables in Nonparametric Regressions. Working Paper. 10. School of Economics, University of Queensland.
A Scale Elasticity Measure for Directional Distance Function and its Dual
Zelenyuk, Valentin (2011). A Scale Elasticity Measure for Directional Distance Function and its Dual. Working Paper. WP06/2011. School of Economics, University of Queensland.
A Note on Equivalences in Measuring Returns to Scale in Multi-output-multi-input Technologies
Zelenyuk, Valentin (2011). A Note on Equivalences in Measuring Returns to Scale in Multi-output-multi-input Technologies. Working Paper. WP05/2011. School of Economics, University of Queensland.
Is foreign-bank efficiency in financial centers driven by home-country characteristics?
Zelenyuk, Valentin (2011). Is foreign-bank efficiency in financial centers driven by home-country characteristics?. Working Paper. WP02/2011. School of Economics, University of Queensland.
Local Maximum Likelihood Techniques with Categorical Data
Zelenyuk, Valentin (2010). Local Maximum Likelihood Techniques with Categorical Data. Working Paper. WP14/2010. School of Economics, University of Queensland.
Aggregation of Economic Growth Rates and of its Sources
Zelenyuk, Valentin (2010). Aggregation of Economic Growth Rates and of its Sources. Working Paper. WP03/2010. School of Economics, University of Queensland.
Efficiency and Technological Change in Health Care Services in Ontario
Zelenyuk, Valentin (2010). Efficiency and Technological Change in Health Care Services in Ontario. Working Paper. WP08/2010. School of Economics, University of Queensland.
Improving Productivity: Theory and Application to Australian Hospitals
(2017–2023) ARC Future Fellowships
(2013–2018) ARC Discovery Projects
Productivity and efficiency analysis: Theory and application to Australian hospitals
Doctor Philosophy — Principal Advisor
Other advisors:
(2022) Doctor Philosophy — Principal Advisor
Advanced mathematical methods for performance analysis
(2019) Doctor Philosophy — Principal Advisor
Demand Uncertainty and Efficiency in the Provision of Public Services
(2022) Doctor Philosophy — Associate Advisor
Other advisors:
Model Specification, Estimation and Inference in Studying Economic Output
(2018) Doctor Philosophy — Associate Advisor
Other advisors: