巨无霸指数以购买力平价理论为基础。根据该理论，汇率需调整以均衡全球范围内的一篮子食物和服务的价格。
The Big Mac index is based on the theory of purchasing-power parity (PPP), according to which exchange rates should adjust to equalise the price of a basket of goods and services around the world.
该指数基于购买力评价理论确立，根据购买力平价理论长期汇率应当调整使两国同样的一篮子商品的价格相同。
It is based on the theory of purchasing-power parity (PPP), which argues that in the long run exchange rates should move to equalise the price of an identical basket of goods between two countries.
该指数基于购买力评价理论确立，根据购买力平价理论长期汇率应当调整使两国同样的一篮子商品的价格相同。
It is based on the theory of purchasing-power parity (PPP), which argues that in the long run exchange rates should move to equalise the price of an identical basket of goods between two countries.
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