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Showing 1-20 of 28 results
  1. Article
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    Productivity analysis: roots, foundations, trends and perspectives

    The goal of this article is to give a brief overview of productivity analysis, starting with general concepts, its importance and a brief historical...

    Valentin Zelenyuk in Journal of Productivity Analysis
    19 October 2023 Open access
  2. Article
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    Aggregation in efficiency and productivity analysis: a brief review with new insights and justifications for constant returns to scale

    The main goal of this paper is to clarify a few important aspects about the aggregation issues in efficiency and productivity analysis. By doing so...

    Valentin Zelenyuk in Journal of Productivity Analysis
    17 April 2023
  3. Article
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    On the problem of the purchasing power of money by A. A. Konüs and S. S. Byushgens: translation and commentary

    In 1939, Econometrica published an English translation of Konüs ( 1924 ). Since then, Konüs ( 1924 [ 1939 ]) has become a classic work on the theory of the...

    Erwin Diewert, Valentin Zelenyuk in Journal of Productivity Analysis
    26 October 2023 Open access
  4. Article

    Sequential data envelopment analysis: decentralization and solutions for panel data

    To address the company-branch structure in data envelopment analysis (DEA), Färe and Zelenyuk ( 2021 , Annals of Operations Research) proposed a...

    Rolf Färe, Zhichao Wang, Valentin Zelenyuk in Journal of Productivity Analysis
    27 January 2025
  5. Article
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    Performance analysis of hospitals in Australia and its peers: a systematic and critical review

    Along with the development of productivity and efficiency analysis techniques, extensive research on the performance of hospitals has been conducted...

    Zhichao Wang, Bao Hoang Nguyen, Valentin Zelenyuk in Journal of Productivity Analysis
    29 June 2024 Open access
  6. Article

    A generalized flexible functional form for α-returns to scale

    This study proposes a new flexible functional form for distance functions. This generalizes the existing functional form of Diewert ( 1992b ) by...

    Hideyuki Mizobuchi, Valentin Zelenyuk in Journal of Productivity Analysis
    16 February 2023
  7. Article

    Further improvements of finite sample approximation of central limit theorems for envelopment estimators

    A simple yet easy to implement method is proposed to further improve the finite sample approximation of the recently developed central limit theorems...

    Léopold Simar, Valentin Zelenyuk, Shirong Zhao in Journal of Productivity Analysis
    02 February 2023
  8. Article

    Is newer always better? A reinvestigation of productivity dynamics using updated PWT data

    Understanding the drivers of productivity remains one of the most sought after phenomena in economics. The ability to create produce more from less...

    Yan Meng, Christopher F. Parmeter, Valentin Zelenyuk in Journal of Productivity Analysis
    01 November 2022
  9. Article

    Quadratic-mean-of-order-r indexes of output, input and productivity

    This paper deals with the quadratic-mean-of-order- r indexes of output, input and productivity. Each index is a family of indexes that unify many of...

    Hideyuki Mizobuchi, Valentin Zelenyuk in Journal of Productivity Analysis
    08 September 2021
  10. Article

    On aggregation of multi-factor productivity indexes

    The goal of this paper is to investigate the question of the importance of aggregation of the Paasche and Laspeyres versions of the Malmquist...

    Rolf Färe, Valentin Zelenyuk in Journal of Productivity Analysis
    17 March 2021
  11. Article
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    Predicting recessions with a frontier measure of output gap: an application to Italian economy

    Despite the long and great history, developed institutions, and high level of physical and human capital, the Italian economy has been fairly...

    Camilla Mastromarco, Léopold Simar, Valentin Zelenyuk in Empirical Economics
    04 March 2021 Open access
  12. Article

    Aggregate efficiency of industry and its groups: the case of Queensland public hospitals

    In this paper, we explore the efficiency of different groups of hospitals in Queensland, Australia, focusing on teaching and non-teaching hospitals,...

    Bao Hoang Nguyen, Valentin Zelenyuk in Empirical Economics
    01 January 2021
  13. Chapter

    Robust Efficiency Analysis of Public Hospitals in Queensland, Australia

    In this study, we utilize various approaches for efficiency analysis to explore the state of efficiency of public hospitals in Queensland, Australia,...
    Bao Hoang Nguyen, Valentin Zelenyuk in Advances in Contemporary Statistics and Econometrics
    2021
  14. Chapter

    Aggregation of Outputs and Inputs for DEA Analysis of Hospital Efficiency: Economics, Operations Research and Data Science Perspectives

    Data envelopment analysis (DEA) has been widely recognised as a powerful tool for performance analysis over the last four decades. The application of...
    Bao Hoang Nguyen, Valentin Zelenyuk in Data-Enabled Analytics
    2021
  15. Article

    Forecasting of recessions via dynamic probit for time series: replication and extension of Kauppi and Saikkonen (2008)

    In this work, we first replicate the results of the fully parametric dynamic probit model for forecasting US recessions from Kauppi and Saikkonen...

    Byeong U. Park, Léopold Simar, Valentin Zelenyuk in Empirical Economics
    15 May 2019
  16. Chapter

    Aggregation of Individual Efficiency Measures and Productivity Indices

    Here, we consider the problem of aggregation of efficiency and productivity indices. We will summarize some of the existing results and will derive...
    Andreas Mayer, Valentin Zelenyuk in The Palgrave Handbook of Economic Performance Analysis
    2019
  17. Article
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    Introduction to the APPC2014 special issue

    Antonio Peyrache, Valentin Zelenyuk in Journal of Productivity Analysis
    22 May 2017
  18. Article

    Slack-based directional distance function in the presence of bad outputs: theory and application to Vietnamese banking

    In this paper we extend the slack-based directional distance function introduced by Färe and Grosskopf (Eur J Oper Res 200(1):320–322, 2010 ) to...

    Manh D. Pham, Valentin Zelenyuk in Empirical Economics
    04 April 2017
  19. Article

    Nonparametric least squares methods for stochastic frontier models

    When analyzing productivity and efficiency of firms, stochastic frontier models are very attractive because they allow, as in typical regression...

    Léopold Simar, Ingrid Van Keilegom, Valentin Zelenyuk in Journal of Productivity Analysis
    13 June 2016
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