There is evidence that many of those who choose to buy from cause-supporting brands are doing so more frequently. In 2010, 67% of respondents reported buying from such a brand at least once a year. That number held relatively steady in 2012, at 66%. But where the tendencies really diverged was among those who frequently made purchases with societal impact in mind. Nearly half of those who bought from cause-supporting brands in 2012 said they did so monthly. That’s compared to only 32% who bought with the same frequency in 2010. Read the rest at eMarketer.