Happiness: Lessons from a New Science

There is a paradox at the heart of our lives. We all want more money, but as societies become richer, they do not become happier. This is not speculation: It's the story told by countless pieces of scientific research. We now have sophisticated ways of measuring how happy people are, and all the evidence shows that on average people have grown no happier in the last fifty years, even as average incomes have more than doubled.

The central question the great economist Richard Layard asks in Ha...