A more useful offshoot of absolute purchasing power parity is relative purchasing power parity. 绝对购买力平价一个更加有用的分支是相对购买力平价。
By devaluing against gold, their money also became cheaper against currencies that kept their gold parity, giving domestic producers a cost advantage over many foreign firms. 当这些国家的货币相对黄金贬值时,相对于其它仍然由黄金平价决定的货币而言也贬值了,因此这些国家的国内制造商相对外国公司具有了成本优势。