请高人翻译下surplus economies should tighten via exchange rate appreciation,

问题描述:

请高人翻译下surplus economies should tighten via exchange rate appreciation,

顺差经济应当通过汇率升值方式来收紧.
下一句是:whereas deficit economies should tighten via fiscal policy.(逆差经济应该通过财务政策来收紧.)