信息不对称理论是由美国经济学家约瑟夫·斯蒂格茨、乔治·阿克尔洛夫、迈克尔·斯彭斯三人共同创立的。这一理论是说在市场经济条件下,市场的买卖主体不可能完全占有对方的信息,这种信息不对称必定导致信息拥有方为谋取自身更大利益使另一方的利益受到损害。这三位经济学家因对这一理论的杰出贡献荣获2001年度诺贝尔经济学奖。目前,这一理论也被借用到其他领域。信息不对称增加 The information asymmetry theory was founded by American economists Joseph Stigz, George Akerlof, and Michael Spence. This theory means that under the conditions of market economy, the main players in the market cannot fully occupy each other’s information. Such information asymmetry must cause information owners to harm their interests in order to seek their own greater interests. These three economists won the 2001 Nobel Prize in Economics for their outstanding contributions to this theory. At present, this theory has also been borrowed into other fields. Increased information asymmetry