有些经济学家认为，为了防止用通货膨胀来为预算赤字融资，某些国家不应该有本国通货，相反，它们应该

使用那些价格具有稳定历史的国家的通货。支持和反对该建议的理由各是什么？ Some economists have argued that in order to prevent inflationary finance of budget deficits certain countries should not have a national currency．Instead，they should Use the currency of a country with a long history of price stability． What are the pros and cons of this proposal？