'Carrera and Dunleavy provide a crystal clear and comprehensive account of the complex issues involved in how best to improve the productivity of government services. They offer a nuanced but powerful explanation of productivity puzzles, conundrums and dilemmas in the public sector. But they also offer solutions to many of these problems. Finally, I have found a text on public economics that makes sense, gives genuine management insights and offers real suggestions to practitioners as to what to do next.' - Barry Quirk, Chief Executive, London Borough of Lewisham, UK