In a put-down of F. Scott Fitzgerald, Ernest Hemmingway once wrote, "The very rich are different from you and me… they have more money." But ever since Adam Smith's Wealth of Nations in 1776, western economies have been based on growth and prosperity as the keys to happiness. On the day after Christmas, with the US heading into a major recession, it's worth asking if that’s really true. One study says Puerto Ricans are happier than Germans or Japanese? How come? Is a simpler, more frugal life more satisfying after all?