For example, long before the financial collapse, experimental economists joined psychologists in attempting to measure varying propensities to greediness. Some evidence suggests that there is a link between the level of dopamine, addiction, and greedy behavior.
比如，早在经济危机爆发之前，实验经济学家就和心理学家一道，研究如何平衡人类的贪婪性。一些证据显示，在多巴胺荷尔蒙，上瘾和贪婪行为之间会有一些联系。