; Productivity ; Index Numbers ; DEA ; Regulation ; Water and Sewerage Industry …

-specific (temporal) index number based profitability growth as a function of the profitability, productivity and price performance growth … that the steady decline in average price performance, gains in productivity and relatively stable economic profitability … after 2000, suggest that Ofwat is now more focused on passing productivity benefits to consumers, and maintaining stable …

) over time to decompose unit-specific index number based productivity growth as a function of the productivity growth … potential productivity catch-up of laggard firms and an estimate of how the top performing company improved its productivity … results indicated that significant gains in productivity occurred after 2000, when Ofwat set tighter price cap reviews in …

The purpose of this paper is the evaluation of various profit drivers such as price changes, productivity changes and … the impact of exogenous factors such as drinking water and sewerage treatment quality on profitability, productivity and … productivity performance of the WaSCs, they have also contributed negatively to their price performance. Overall, after 2000 steady …

productivity enhancing performance of the European Union's CO2 Emissions Trading Scheme (EU ETS) in its pilot phase. Using Data … Envelopment Analysis methods, we measure the environmental efficiency and the productivity growth registered in public power … productivity and efficiency over time using state-of-the-art econometric techniques. Our analysis suggests two conclusions: on the …