Economic adjustment is necessarily slower within a monetary union than it is for countries with their own currency, because, even for very flexible economies, prices change more slowly than the exchange rate. Delivering the same result therefore takes more time, and requires keeping countries in intensive care for longer – and at higher cost.
货币联盟内部的经济调整必然慢于拥有本国货币的国家，因为即便是灵活度极高的经济，价格变化也比汇率变化更加缓慢。因此，达到相同效果要耗费更长时间，也要求各国做好准备接受更长时间和更高成本。