technique is of great interest for regulators to evaluate the effectiveness of regulation and companies to identify the … ; Productivity ; Index Numbers ; DEA ; Regulation ; Water and Sewerage Industry …

The purpose of this paper is to assess the impact of regulation in the financial performance of the Water and Sewerage … effectiveness of regulation and companies to identify the determinants of profit change and improve future performance, even if … sample sizes are limited. -- Profit Decomposition ; Productivity ; Price Performance ; Panel Index Numbers ; Regulation …

interested in developing comparative performance measurement under regulation and setting appropriate regulated prices when … sample sizes are extremely limited. -- X-factor ; productivity decomposition ; panel index numbers ; regulation ; water and …