'This superb book brings together – in a rigorous and pedagogical way – the academic knowledge and real-world challenges and solutions to the regulation of sectors that constitute an essential part of our economies. In our politically and socially uncertain times, it is particularly useful in thoroughly addressing the efficiency, equity and political acceptability of regulatory systems, as well as their fiscal and institutional constraints.' Mathias Dewatripont, Professor of Economics, Université Libre de Bruxelles and Honorary Vice-Governor, National Bank of Belgium