The choice of a technical efficiency measure on the free disposal hull reference technology: A comparison using US banking data. - Bruno De Borger; Gary D. Ferrier; Kristiaan Kerstens (Eur. J. Oper. Res., 1998)

Estimating returns to scale using non-parametric deterministic technologies: A new method based on goodness-of-fit. - Kristiaan Kerstens; Philippe Vanden Eeckaut (Eur. J. Oper. Res., 1999)

Mean-Variance-Skewness Portfolio Performance Gauging: A General Shortage Function and Dual Approach. - Walter Briec; Kristiaan Kerstens; Octave Jokung (Manag. Sci., 2007)

Hedonic price function estimation in economics and marketing: revisiting Lancaster's issue of "noncombinable" goods. - Ruben Chumpitaz; Kristiaan Kerstens; Nicholas Paparoidamis; Matthias Staat (Ann. Oper. Res., 2010)

Comparing efficiency across markets: An extension and critique of the methodology. - Ruben Chumpitaz; Kristiaan Kerstens; Nicholas Paparoidamis; Matthias Staat (Eur. J. Oper. Res., 2010)

Bank productivity and performance groups: A decomposition approach based upon the Luenberger productivity indicator. - Mircea Epure; Kristiaan Kerstens; Diego Prior (Eur. J. Oper. Res., 2011)

Geometric representation of the mean-variance-skewness portfolio frontier based upon the shortage function. - Kristiaan Kerstens; Amine Mounir; Ignace Van de Woestyne (Eur. J. Oper. Res., 2011)

Negative data in DEA: a simple proportional distance function approach. - Kristiaan Kerstens; Ignace Van de Woestyne (J. Oper. Res. Soc., 2011)

Returns to growth in a nonparametric DEA approach. - Biresh K. Sahoo; Kristiaan Kerstens; Kaoru Tone (Int. Trans. Oper. Res., 2012)

Benchmarking mean-variance portfolios using a shortage function: the choice of direction vector affects rankings! - Kristiaan Kerstens; Amine Mounir; Ignace Van de Woestyne (J. Oper. Res. Soc., 2012)

Portfolio selection with skewness: A comparison of methods and a generalized one fund result. - Walter Briec; Kristiaan Kerstens; Ignace Van de Woestyne (Eur. J. Oper. Res., 2013)

Solution Methods for nonconvex Free disposal Hull Models: a Review and some Critical Comments. - Kristiaan Kerstens; Ignace Van de Woestyne (Asia Pac. J. Oper. Res., 2014)

Comparing Malmquist and Hicks-Moorsteen productivity indices: Exploring the impact of unbalanced vs. balanced panel data. - Kristiaan Kerstens; Ignace Van de Woestyne (Eur. J. Oper. Res., 2014)

A note on a variant of radial measure capable of dealing with negative inputs and outputs in DEA. - Kristiaan Kerstens; Ignace Van de Woestyne (Eur. J. Oper. Res., 2014)

Nonparametric cost and revenue functions under constant economies of scale: an enumeration approach for the single output or input case. - Walter Briec; Kristiaan Kerstens; Ignace Van de Woestyne (Int. Trans. Oper. Res., 2014)

Frontier-based vs. traditional mutual fund ratings: A first backtesting analysis. - Olivier Brandouy; Kristiaan Kerstens; Ignace Van de Woestyne (Eur. J. Oper. Res., 2015)

Global and local scale characteristics in convex and nonconvex nonparametric technologies: A first empirical exploration. - Giovanni Cesaroni; Kristiaan Kerstens; Ignace Van de Woestyne (Eur. J. Oper. Res., 2017)

Estimating scale economies in non-convex production models. - Giovanni Cesaroni; Kristiaan Kerstens; Ignace Van de Woestyne (J. Oper. Res. Soc., 2017)

Enumeration algorithms for FDH directional distance functions under different returns to scale assumptions. - Kristiaan Kerstens; Ignace Van de Woestyne (Ann. Oper. Res., 2018)

Testing general and special Färe-Primont indices: A proposal for public and private sector synthetic indices of European regional expenditures and tourism. - Walter Briec; Kristiaan Kerstens; Diego Prior; Ignace Van de Woestyne (Eur. J. Oper. Res., 2018)

Short- and long-run plant capacity notions: Definitions and comparison. - Giovanni Cesaroni; Kristiaan Kerstens; Ignace Van de Woestyne (Eur. J. Oper. Res., 2019)

Metatechnology frontier and convexity: A restatement. - Kristiaan Kerstens; Christopher O'Donnell; Ignace Van de Woestyne (Eur. J. Oper. Res., 2019)

Convex and nonconvex input-oriented technical and economic capacity measures: An empirical comparison. - Kristiaan Kerstens; Jafar Sadeghi 001; Ignace Van de Woestyne (Eur. J. Oper. Res., 2019)

Plant Capacity and Attainability: Exploration and Remedies. - Kristiaan Kerstens; Jafar Sadeghi 001; Ignace Van de Woestyne (Oper. Res., 2019)

Plant capacity notions in a non-parametric framework: a brief review and new graph or non-oriented plant capacities. - Kristiaan Kerstens; Jafar Sadeghi 001; Ignace Van de Woestyne (Ann. Oper. Res., 2020)

Metafrontier productivity indices: Questioning the common convexification strategy. - Qianying Jin; Kristiaan Kerstens; Ignace Van de Woestyne (Eur. J. Oper. Res., 2020)

Input Efficiency Measures: A Generalized, Encompassing Formulation. - Walter Briec; Laurent Cavaignac; Kristiaan Kerstens (Oper. Res., 2020)

Empirical surveys of frontier applications: a meta-review. - Cinzia Daraio; Kristiaan Kerstens; Thyago Celso Cavalcante Nepomuceno; Robin C. Sickles (Int. Trans. Oper. Res., 2020)

Cost functions are nonconvex in the outputs when the technology is nonconvex: convexification is not harmless. - Kristiaan Kerstens; Ignace Van de Woestyne (Ann. Oper. Res., 2021)

Malmquist productivity indices and plant capacity utilisation: new proposals and empirical application. - Kristiaan Kerstens; Jafar Sadeghi 001; Ignace Van de Woestyne; Linjia Zhang (Ann. Oper. Res., 2022)

Some connections between higher moments portfolio optimization methods. - Farshad Noravesh; Kristiaan Kerstens (CoRR, 2022)

Generalised commensurability properties of efficiency measures: Implications for productivity indicators. - Walter Briec; Audrey Dumas; Kristiaan Kerstens; Agathe Stenger (Eur. J. Oper. Res., 2022)

Procedures for ranking technical and cost efficient units: With a focus on nonconvexity. - Kristiaan Kerstens; Jafar Sadeghi 001; Mehdi Toloo; Ignace Van de Woestyne (Eur. J. Oper. Res., 2022)

Evaluating horizontal mergers in Swedish district courts using plant capacity concepts. - Xiaoqing Chen; Kristiaan Kerstens (RAIRO Oper. Res., 2023)

Double hedonic price-characteristics frontier estimation for IoT service providers in the industry 5.0 era: A nonconvex perspective accommodating ratios. - Kristiaan Kerstens; Majid Azadi; Reza Kazemi Matin; Reza Farzipoor Saen (Eur. J. Oper. Res., 2024)

Risk-aversion versus risk-loving preferences in nonparametric frontier-based fund ratings: A buy-and-hold backtesting strategy. - Tiantian Ren; Kristiaan Kerstens; Saurav Kumar (Eur. J. Oper. Res., 2024)

Economic and Environmental Decomposition of Luenberger-Hicks-Moorsteen Total Factor Productivity Indicator: Empirical Analysis of Chinese Textile Firms With a Focus on Reporting Infeasibilities and Questioning Convexity. - Tomas Balezentis; Kristiaan Kerstens; Zhiyang Shen (IEEE Trans. Engineering Management, 2024)

Correction to: Malmquist productivity indices and plant capacity utilisation: new proposals and empirical application. - Kristiaan Kerstens; Jafar Sadeghi 001; Ignace Van de Woestyne; Linjia Zhang (Ann. Oper. Res., 2024)

Evaluation and optimization of hospital system in Chinese provinces: does mortality matter? - Zhiyang Shen; Kristiaan Kerstens; Vivian Valdmanis; Songkai Wang (RAIRO Oper. Res., 2024)

Evaluating different groups of mutual funds using a metafrontier approach: Ethical vs. non-ethical funds. - Qianying Jin; Antonella Basso; Stefania Funari; Kristiaan Kerstens; Ignace Van de Woestyne (Eur. J. Oper. Res., 2024)

Plant capacity notions: review, new definitions, and existence results at firm and industry levels. - Kristiaan Kerstens; Jafar Sadeghi 001 (Int. J. Prod. Res., 2024)

Convex and nonconvex nonparametric frontier-based classification methods for anomaly detection. - Qianying Jin; Kristiaan Kerstens; Ignace Van de Woestyne (OR Spectr., 2024)

Nonradial plant capacity concepts: proposals and attainability. - Kristiaan Kerstens; Jafar Sadeghi 001; Xiangyang Tao (Ann. Oper. Res., 2025)

An environmental Luenberger-Hicks-Moorsteen total factor productivity indicator: empirical analysis considering undesirable outputs either as inputs or outputs, and attention for infeasibilities. - Zhiyang Shen; Kristiaan Kerstens; Tomas Balezentis (Ann. Oper. Res., 2025)