Despite the old adage, money has always bought happiness. But, according to a new study by psychologist Jean Twenge, today it buys a lot more than it used to.

She found that the happiness gap between those with higher and lower incomes has widened steadily since the 1970s, mostly because those with less money aren’t as happy as they used to be. That’s why an income guarantee, which is currently being tested in Newark, New Jersey, and Stockton, California, could not only help people make a better living but make them happier too.

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Nick Lehr

Arts + Culture Editor

Don’t listen to the old adage. PonyWang/Getty Images

Money buys even more happiness than it used to

Jean Twenge, San Diego State University

Americans with lower incomes today are less happy than they were 40 years ago. Could the growing class divide be to blame?

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