Maziotis, Alexandros; Saal, David S.; Thanassoulis, E. - 2013
, productivity and price performance of the regulated Water and Sewerage companies (WaSCs) in England and Wales during the years 1991 …-2008. In order to better analyse the impact of regulation on WaSC performance, we decompose actual economic profits into … spatial multilateral Fisher productivity (TFP), the inverse of which is demonstrated to be a regulatory excess cost index that …