Why the poor give more

Another fascinating example of the contact hypothesis (not) in action.  An article in The Atlantic suggests that the rich aren't intrinsically more selfish; rather, their isolation from poverty makes them so:

One of the most surprising, and perhaps confounding, facts of charity in America is that the people who can least afford to give are the ones who donate the greatest percentage of their income. In 2011, the wealthiest Americans—those with earnings in the top 20 percent—contributed on average 1.3 percent of their income to charity. By comparison, Americans at the base of the income pyramid—those in the bottom 20 percent—donated 3.2 percent of their income. ...

But why? ... Notably, though, when both groups [rich and poor; in a Berkeley psych study] were exposed to a sympathy-eliciting video on child poverty, the compassion of the wealthier group began to rise, and the groups’ willingness to help others became almost identical.

If Piff’s research suggests that exposure to need drives generous behavior, could it be that the isolation of wealthy Americans from those in need is a cause of their relative stinginess? Patrick Rooney, the associate dean at the Indiana University School of Philanthropy, told me that greater exposure to and identification with the challenges of meeting basic needs may create “higher empathy” among lower-income donors. His view is supported by a recent study by The Chronicle of Philanthropy, in which researchers analyzed giving habits across all American ZIP codes. Consistent with previous studies, they found that less affluent ZIP codes gave relatively more. Around Washington, D.C., for instance, middle- and lower-income neighborhoods, such as Suitland and Capitol Heights in Prince George’s County, Maryland, gave proportionally more than the tony neighborhoods of Bethesda, Maryland, and McLean, Virginia. But the researchers also found something else: differences in behavior among wealthy households, depending on the type of neighborhood they lived in. Wealthy people who lived in homogeneously affluent areas—areas where more than 40 percent of households earned at least $200,000 a year—were less generous than comparably wealthy people who lived in more socioeconomically diverse surroundings. It seems that insulation from people in need may dampen the charitable impulse.