广为流传的贫困线为“一天一美元”或者更为精确地说是“1天1.08美元”（这是以1993年物价为基准的购买力平价指数）。
It famously draws the poverty line at “a dollar a day”, or more precisely $1.08 at 1993 purchasing-power parity (PPP).
巨无霸指数的基础是购买力平价，即一种货币的价格应该反映它所能买到的商品和服务。
The index is based on the idea of purchasing-power parity, which says that a currency's price should reflect the amount of goods and services it can buy.
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.
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 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.
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。
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.
巨无霸指数基于购买力平价理论，该理论认为汇率应该使不同国家的一揽子商品的价格相等。
THE Big Mac index is based on the theory of purchasing-power parity (PPP)—exchange rates should equalise the price of a basket of goods in different countries.
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.
研究表明巨无霸指数追踪的购买力平价率与更加先进的方法计算出的购买力平价率相当接近。
Studies suggest that the Big Mac index fairly closely tracks the purchasing-power-parity rates calculated by more sophisticated methods.
经济学人的巨无霸指数提供了一个粗略的估测方法，计算汇率和购买力平价相差多少。
The Economist's Big Mac index offers a crude estimate of how far exchange rates are from PPP.
该指数是理论的基础上购买力平价的权力，这表示汇率应迁出，使价格与一篮子的商品在每一个国家都相同。
The index is based on the theory of purchasing-power parity, which says that exchange rates should move to make the price of a basket of goods the same in each country.
该指数是理论的基础上购买力平价的权力，这表示汇率应迁出，使价格与一篮子的商品在每一个国家都相同。
The index is based on the theory of purchasing-power parity, which says that exchange rates should move to make the price of a basket of goods the same in each country.
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