对格雷欣定律成立条件的再分析

自格雷欣定律提出以后,经济学界主要关注该定律对经济的影响,对其成立的条件分析较少。目前对该定律成立条件的分析包括信息不对称、良劣币都具有价值、劣币数量足够多、良劣币交换价格相等或劣币可以按照面值流通等。但是这些条件都不充分,该定律要想发挥作用,需满足良劣币均为法币、货币超额供给、劣币可打折支付等条件。

Research on Establishing Conditions of Gresham's Law

Since Gresham’s Law is proposed,economists focused on the law’s effect on economy,otherwise they paid less attention to establishing conditions.At present,all analysis focus on these conditions such as information asymmetry,bad money having value,enormous amount of bad money,equality of exchange price between good and bad money.However,these conditions are not sufficient,the law should meet several other conditions to play a role.