How much money do you need to have a happier life? New research says you stop getting happier after you reach a salary of $75,000 a year. After that point, according to the study from Princeton, "life evaluations" level off. We look at why this is, and we want to know from you, When has having more money made you LESS happy? With the unemployment rate in the U.S. at 9.6 percent, money is on every American's mind, especially when it comes to one's salary. Although it is assumed that more money equals more happiness, a new study shows that this isn't true. The Princeton University study shows that more money doesn't exactly equal happier life experiences or a more positive well being. Professor Angus Deaton of Princeton University co-authored the study and discusses the details.

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