Absolute purchasing power parity indicates that the price level of the two countries should be equal when expressed in the same currency; or under the current exchange rate regime, the PPP condition holds only when the purchasing power of domestic equals to its equivalent in a foreign country. Absolute purchasing power parity links exchange rate to the price level of all goods. In a price relatively stable period, there would be no drastic fluctuations in the exchange rate. However, if inflation happens, a country’s price level is likely to fluctuate significantly; the exchange rate also will be very volatile. In practice, because different countries use different price indices to calculate the weight of the price level, thus equation (2-2) is not very feasible in practice. And, if there are some restrictions such as tariffs, quotas, and transportation fees, or price information between the two countries is not complete, absolute purchasing power parity will not hold.
绝对购买力平价表明这两个国家的价格水平应等于相同的货币表示时；或当前汇率制度下，购买力平价条件成立的情况下，只有当国内的购买力等于其等效在国外。绝对购买力平价联系汇率的所有商品的价格水平。在一个价格相对稳定的时期，就在汇率没有剧烈波动。然而，如果通货膨胀发生时，一个国家和# 039；价格水平可能大幅波动；汇率也将非常波动。在实践中，由于不同的国家使用不同的价格指数计算的价格水平的权重，从而方程（2-2）在实践中是不可行的。而且，如果有一些限制，如关税，配额，运输费，或这两个国家之间的价格信息是不完全的，绝对购买力平价将不会举行。
