This volume presents the proceedings of the major conference held to celebrate the centenary of the birth of John Maynard Keynes at King's College, Cambridge. It brings together major international figures in economics and looks at Keynesian economics and the relevance of Keyne's ideas today. In addition to the main speakers and discussants, summaries of the discussions on each paper and memoirs of Maynard Keynes from Sir Austin Robinson, Richard Braithwaite and James Meade are also included.