通过对零和博弈中某悖论的分析,证明了在信息不对称条件下会放大有利于自己的期望或放大不利于自己的期望的结论,揭示了信息不对称是容易作出错误判断、增加风险的重要原因,为证券市场中的怪现象追涨杀跌找到了理论根据,这对在信息不对称条件下,参与竞争的各方如何正确判断和决策、降低成本和风险具有非常重要的现实意义。 Through the analysis of a paradox in the zero-sum game, it is proved that under the condition of asymmetric information, it can amplify the conclusion that is beneficial to one’s own expectation or amplify the one that is unfavorable to oneself. It reveals that information asymmetry is easy to make wrong judgment and increase risk Which is the important reason for the stock market chase phenomenon to find the theoretical basis, which is under the information asymmetry conditions, the parties involved in the competition how to correctly judge and make decisions, reduce costs and risks has very important practical significance .