This article examines the robustness of efficiency score rankings across four distributional assumptions for trans-log stochastic production-frontier models, using data from 1221 Japanese water utilities (for 2004 and 2005). One-sided error terms considered include the half-normal, truncated...

Both ownership and regulation affect the behavior of utility managers. Private ownership rewards managerial decisions that enhance shareholder value. Regulatory incentives reward behavior that affects profits and costs. An empirical analysis of 24 Ukraine electricity distribution companies from...

This paper updates the literature on water utility benchmarking studies developed worldwide, focusing on scale and scope economies. Using meta-regression analysis, the study investigates which variables from published studies influence these economies. Our analysis yields several conclusions....