It’s not joy, but a hypothesis developed by Daniel Batson links empathy and this behavior. James Andreoni explains an “impure” form of this behavior using the “warm glow.” In a paper titled for this behavior, Herbert Simon argues that without this behavior, the paradox of voting would not exist. Ernst Fehr found that an emotionally-driven form of this behavior motivated group members to punish free-riders in a public goods game. (-5[1])Greed aversion, guilt aversion, and this behavior are competing explanations for participant offers in the (*) dictator game. Gary Becker argues that this behavior within the family is not fully explained by the evolutionary origin of this behavior via kin selection. (10[1])Egoism is contrasted with, for 10 points, (10[1])what cooperative behavior where individuals benefit another’s welfare without benefiting themselves? (10[1])■END■