An Investigation into the Robustness of Ofwat's Comparative Efficiency Analysis of Capital Maintenance Expenditure
1 June 1999
By Dr. William Baker with Jeremy Liesner and Emma Kelso
This report examines the capital maintenance comparative efficiency models released by OFWAT earlier this year, as detailed in RD 2/99. It appraises the robustness of the OFWAT approach, examines how much confidence can be placed in the efficiency scores obtained, and considers the implications for the setting of "catch-up" efficiency targets at the 1999 periodic review.
