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经济关系的双方掌握的信息不对称,使得信息优势方有讨便宜的机会。信息经济学就是对付欺诈行为的学问,隐蔽特征导致的逆向选择和隐蔽行动导致的道德风险,是关键的概念。信号和信誉,筛选和合同,分别是信息优势方和信息劣势方的基本策略。
Asymmetric information held by both parties to economic relations makes information superiority a bargain. Information economics is the science of dealing with fraud, the adverse selection caused by hidden features and the moral hazard caused by hidden actions are the key concepts. Signal and reputation, screening and contracting, respectively, are the basic strategies for information superiority and information inferiority.