While Mitt Romney pays a lot less in taxes than people who make a great deal less than him, defenders point to his generous charitable contributions as evidence that he's giving back nonetheless. Paul Bedard at the conservative Washington Examiner, for example, touted the fact that Romney paid 57.9 percent of his income in either taxes or charitable donations in 2011. More generally, Arthur Brooks, the president of the American Enterprise Institute, frequently claims that conservative Americans are more generous with their charitable giving than their liberal counterparts.
Leaving aside the fraught question of whether charitable donations and taxes serve the same question, is this really true? Do conservatives give more away? According to a new study by two MIT political scientists, not really.
Michele Margolis and Michael Sances note that Brooks' conclusion comes from a dataset that doesn't really ask how conservative people are politically so much as how conservative they are socially. Using a dataset which uses more traditional questions to test political beliefs - the General Social Survey - they found no statistically significant relationship between peoples' political beliefs, or their partisan affiliation, and their charitable giving level. And this held at the state level too. There was no significant relationship between a state's level of  giving and the vote share that Bush received in that state in 2004.