'I do not know whether capitalism is in crisis. But I do know Alex Edmans' superb book makes the case, compellingly and comprehensively, for a radical rethink of how companies operate and indeed why they exist. It is the definitive account of the analytical case for responsible business, but is at the same time practical and grounded in real business experience. It is a tour de force.' Andy Haldane, Chief Economist, Bank of England