A new study out this week has rekindled an old economics fight: When countries get richer, do they get happier? For Richard Easterlin, the answer has always been "no." He became famous in economics circles beginning in the 1970s for articulating his namesake idea, the "Easterlin paradox." He found that when you compare rich countries to poor countries, the people in the wealthy nations were more satisfied. But when a country's economic position improved over time, the people in that country didn't get happier.
"If you look across countries and compare happiness and GDP [gross domestic product] per capita, you find that the higher the country's income, the more likely it is to be happier," Easterlin said. "So the expectation based on point-in-time data is if income goes up, then happiness will go up. The paradox is, when you look at change over time, that doesn't happen." [LiveScience]