Forty-one percent of Americans say they have purchased a product in the past year because it was associated with a social or environmental cause (41%), a two-fold increase since Cone first began measuring in 1993 (20%). But even as their purchasing power grows, consumer appetite for socially conscious shopping has yet to be satiated. A full 83 percent of consumers want more of the products, services and retailers they use to benefit causes, according to the new 2010 Cone Cause Evolution Study, the nation?s only 17-year benchmark of cause marketing attitudes and behaviors. Less