Most of us would like to be richer. But surveys suggest the super rich are no happier than the rest of us and mental disorders and unhappiness increase with inequality. Do we need a more equal society, and a global tax on wealth, or does wealth benefit us all as a driver of investment and growth?

Nobel Laureate and New York Times columnist Paul Krugman, human rights activist Peter Tatchell, philosopher Jamie Whyte and Oxford development economist Frances Stewart debate wealth and well-being.