How much money is enough? - MSN Money - 0 views
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Take the United States: Richard A. Easterlin, an economics professor at the University of Southern California and a former Guggenheim Fellow, has done extensive research that "found no significant relationship between happiness and time over a period in which GDP (gross domestic product) per capita grew by one-third, from 1972 to 1991."
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Similarly, Eric Weiner notes in "The Geography of Bliss" that America -- "the wealthiest nation in the world" -- is "three times richer than we were in 1950, yet no happier."