Developing a step-by-step effectiveness assessment model for customer-oriented service organizations. - Sophocles N. Brissimis; Panagiotis D. Zervopoulos (Eur. J. Oper. Res., 2012)

A variant of radial measure capable of dealing with negative inputs and outputs in data envelopment analysis. - Gang Cheng; Panagiotis D. Zervopoulos; Zhenhua Qian (Eur. J. Oper. Res., 2013)

Estimating the technical efficiency of health care systems: A cross-country comparison using the directional distance function. - Gang Cheng; Panagiotis D. Zervopoulos (Eur. J. Oper. Res., 2014)

Performance measurement with multiple interrelated variables and threshold target levels: Evidence from retail firms in the US. - Panagiotis D. Zervopoulos; Theodora S. Brisimi; Ali Emrouznejad; Gang Cheng (Eur. J. Oper. Res., 2016)

A cross-country evaluation of environmental performance: Is there a convergence-divergence pattern in technology gaps? - Konstantinos Kounetas; Panagiotis D. Zervopoulos (Eur. J. Oper. Res., 2019)

A multi-parametric method for bias correction of DEA efficiency estimators. - Panagiotis D. Zervopoulos; Sokratis Sklavos; Angelos Kanas; Gang Cheng (J. Oper. Res. Soc., 2019)

Measuring performance in the presence of noisy data with targeted desirable levels: evidence from healthcare units. - Panagiotis Mitropoulos; Panagiotis D. Zervopoulos; Ioannis Mitropoulos (Ann. Oper. Res., 2020)

Directional distance function DEA estimators for evaluating efficiency gains from possible mergers and acquisitions. - Hussein A. Hassan Al Tamimi; Andi Duqi; Angelos Kanas; Panagiotis D. Zervopoulos (J. Oper. Res. Soc., 2022)

An alternative Bayesian data envelopment analysis approach for correcting bias of efficiency estimators. - Panagiotis D. Zervopoulos; Konstantinos P. Triantis; Sokratis Sklavos; Angelos Kanas (J. Oper. Res. Soc., 2023)

Supply chain performance evaluation using a network data envelopment analysis model with bias-corrected estimates. - Ilias Vlachos; Panagiotis D. Zervopoulos; Gang Cheng (Ann. Oper. Res., 2024)