Richard Layard is Emeritus Professor of Economics at the London School of Economics, and author of the best-selling Happiness (Penguin, 2005). He was founder-director of the Centre for Economic Performance at the London School of Economics and now heads its programme on well-being. He is also a member of the House of Lords. Judy Dunn is Professor of Developmental Psychology at the Institute of Psychiatry, King's College London. Her research interests are in children's social, emotional and communicative development, studied in their families and with their friends. She is Chair of the Good Childhood Inquiry.