A study published today in Scientific Reports examined the idea of social comparison and generosity. Study subjects participated in simulations wherein they had to decide whether or not to donate to another player, based on the player's reputation as well as their own. The study authors found that people were more likely to donate to those with reputations as good as or better than themselves. If the other player was viewed as generous, participants would more often give to that person, over someone known to be greedy.