Valentin Zelenyuk

According to our database, Valentin Zelenyuk authored at least 28 papers between 2003 and 2025.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2025

Likelihood-ratio test for technological differences in two-stage data envelopment analysis for panel data.

Kai Du, Valentin Zelenyuk

Eur. J. Oper. Res., 2025

2024

Generalized theory for measuring efficiency of individuals and groups.

Valentin Zelenyuk, Valentyn Panchenko

Ann. Oper. Res., January, 2024

Statistical Inference for Aggregation of Malmquist Productivity Indices.

Manh D. Pham, Léopold Simar, Valentin Zelenyuk

Oper. Res., 2024

Russell and slack-based measures of efficiency: A unifying framework.

Valentin Zelenyuk, Shirong Zhao

Eur. J. Oper. Res., 2024

Inference for aggregate efficiency: Theory and guidelines for practitioners.

Léopold Simar, Valentin Zelenyuk, Shirong Zhao

Eur. J. Oper. Res., 2024

2022

Data sharpening for improving central limit theorem approximations for data envelopment analysis-type efficiency estimators.

Bao-Hoang Nguyen, Léopold Simar, Valentin Zelenyuk

Eur. J. Oper. Res., 2022

2021

Sequential data envelopment analysis.

Rolf Färe, Valentin Zelenyuk

Ann. Oper. Res., 2021

2020

Aggregation of inputs and outputs prior to Data Envelopment Analysis under big data.

Valentin Zelenyuk

Eur. J. Oper. Res., 2020

Improving finite sample approximation by central limit theorems for estimates from Data Envelopment Analysis.

Léopold Simar, Valentin Zelenyuk

Eur. J. Oper. Res., 2020

2019

Combining the Virtues of Stochastic Frontier and Data Envelopment Analysis.

Christopher F. Parmeter, Valentin Zelenyuk

Oper. Res., 2019

A Unifying Framework for Farrell Profit Efficiency Measurement.

Rolf Färe, Xinju He, Sung Ko Li, Valentin Zelenyuk

Oper. Res., 2019

Weak disposability in nonparametric production analysis: A new taxonomy of reference technology sets.

Manh D. Pham, Valentin Zelenyuk

Eur. J. Oper. Res., 2019

2018

Central Limit Theorems for Aggregate Efficiency.

Léopold Simar, Valentin Zelenyuk

Oper. Res., 2018

Data envelopment analysis, truncated regression and double-bootstrap for panel data with application to Chinese banking.

Kai Du, Andrew C. Worthington, Valentin Zelenyuk

Eur. J. Oper. Res., 2018

2017

Nonparametric estimation of dynamic discrete choice models for time series data.

Byeong U. Park, Léopold Simar, Valentin Zelenyuk

Comput. Stat. Data Anal., 2017

How relevant is the choice of risk management control variable to non-parametric bank profit efficiency analysis? The case of South Korean banks.

Richard Simper, Maximilian J. B. Hall, WenBin Liu, Valentin Zelenyuk, Zhongbao Zhou

Ann. Oper. Res., 2017

2016

Generalized nonparametric smoothing with mixed discrete and continuous data.

Degui Li, Léopold Simar, Valentin Zelenyuk

Comput. Stat. Data Anal., 2016

2015

Pricing of decision-making units under non-constant returns to scale.

Rolf Färe, Valentin Zelenyuk

J. Oper. Res. Soc., 2015

Aggregation of scale efficiency.

Valentin Zelenyuk

Eur. J. Oper. Res., 2015

Decomposing profit efficiency using a slack-based directional distance function.

Rolf Färe, Hirofumi Fukuyama, Shawna Grosskopf, Valentin Zelenyuk

Eur. J. Oper. Res., 2015

2014

Directional vs. Shephard's distance functions.

Valentin Zelenyuk

Optim. Lett., 2014

Aggregation of Malmquist productivity indexes allowing for reallocation of resources.

Andreas Mayer, Valentin Zelenyuk

Eur. J. Oper. Res., 2014

2013

A scale elasticity measure for directional distance function and its dual: Theory and DEA estimation.

Valentin Zelenyuk

Eur. J. Oper. Res., 2013

2011

Aggregation of economic growth rates and of its sources.

Valentin Zelenyuk

Eur. J. Oper. Res., 2011

2009

Comparative analysis of banking production frameworks in eastern european financial markets.

Karligash Kenjegalieva, Richard Simper, Tom Weyman-Jones, Valentin Zelenyuk

Eur. J. Oper. Res., 2009

2007

Extending Färe and Zelenyuk (2003).

Rolf Färe, Valentin Zelenyuk

Eur. J. Oper. Res., 2007

2006

Aggregation of Malmquist productivity indexes.

Valentin Zelenyuk

Eur. J. Oper. Res., 2006

2003

On aggregate Farrell efficiencies.

Rolf Färe, Valentin Zelenyuk

Eur. J. Oper. Res., 2003