Erbetta, Fabrizio; Cave, Martin - In: Review of Network Economics 6 (2007) 4, pp. 425-452
This paper evaluates the impact of the tightening in price cap by OFWAT and of other operational factors on the efficiency of water and sewerage companies in England and Wales using a mixture of data envelopment analysis and stochastic frontier analysis. Previous empirical results suggest that...
