( PPP) () [] the theory that the rate of exchange between two currencies adjusts so that eventually the cost of a range of goods and services will be the same in both countries购买力平价（认为两种货币汇率调整的结果是最终两国的各种产品和服务的成本趋于一致）◆According to the theory of purchasing power parity, market forces will equalize prices between countries.根据购买力平价理论，市场将使两国间的价格趋于一致。 [, ]a rate of exchange that is calculated for two currencies so that the amount paid for a range of goods and services in both countries is the same购买力平价（使两国支付各种产品和服务的金额相等的汇率）◆Purchasing power parity is useful for comparing living standards between countries.购买力平价可用于比较两国间的生活水平。