Doing good or doing harm: experimental evidence on giving and taking in public good games
实验复制了Andreoni（1995）的发现，即从公共账户索取比向公共品给予更自私，并揭示这一结果部分源于索取框架中完全消除给予选项，但单纯扩展行动空间至索取领域也会显著增加自私行为。
Abstract We replicate Andreoni (Quarterly Journal of Economics 110: 1–21, 1995)’s finding that agents behave more selfishly when taking from a public account than when giving to a public good. Based on a neutral language setting we add new insights into motivations to give or take in a linear public good setting: we find that Andreoni’s result is partly driven by the complete elimination of giving options in the taking frame. However, a pure extension of the action space into the taking domain also leads to a significant increase in selfish behavior.