A new report from the Pew memorial trusts says, "

Republicans Happier than Democrats, Independents

I guess it is easier to be happy when you believe that people get what they deserve, and it is not your problem.
Also, take a look at this one:
http://pewresearch.org/social/chart.php?ChartID=38
and this one:
http://pewresearch.org/social/chart.php?ChartID=2
Money does buy happiness. Or at least people with more money tend to be happier.

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