Recent economic studies discount this simplistic judgment of the economic man and argue that an exclusive focus on extrinsic motivations crowds out intrinsic motivations (Frey 1997).

• 近期的经济研究降低了这种“经济人”的简单判断的作用,认为过分强调外部激励机制对于内部激励机制有挤出效应(Frey,1997)。