Big Mac Index, "which compares the cost of the same McDonald's sandwich in different countries to give an idea of buying power of people in different places, Pasik said."
麦当劳“巨无霸汉堡指数”通过比较同一款三明治在不同国家的售价来测算出不同国家的购买力水平。
The index is based on the idea of purchasing-power parity (PPP), which says currencies should trade at the rate that makes the price of goods the same in each country.
指数在购买力平价（PPP）这一概念基础上产生，购买力平价是指货币应以使商品价格在各个国家保持一致的汇率兑换。
The Big Mac Index is based on the theory of purchasing-power parity (PPP), which says that exchange rates should move to make the price of a basket of goods the same in each country.
巨无霸指数是建立在购买力平价理论的基础上。 购买力平价理论认为，汇率应该使得一揽子商品的价格在各个国家都相同。
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