在信用纸币制度和自由开放的国际经济环境中，货币竞争遵循良币驱逐劣币的逆格雷欣法则；
Currency competition abides by the law of " Anti-Gresham 's Law ", good money drives out bad , in the credit system of paper currency and the freely open international economic environment ;
良币驱逐劣币