A meta-regression analysis of benchmarking studies on water utilities market structure

作者：Carvaho Pedro; Marques Rui Cunha^*; Berg Sanford

来源：Utilities Policy, 2012, 21: 40-49.

DOI：10.1016/j.jup.2011.12.005

• Scale economies
• Scope economies
• Meta-regression analysis
• Water utilities

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. The results indicate that there is a higher probability of finding diseconomies of scale and scope in large utilities; however, only the results for scale economies are significant. Diseconomies of scale and scope are more likely to be found in publicly-owned utilities than when the ownership is private; as would be expected, multi-utilities are more likely to have scale and scope economies.

• 出版日期2012-6