Exchange Rate - Purchasing Power of Currency

Purchasing Power of Currency

The "real exchange rate" (RER) is the purchasing power of a currency relative to another. It is based on the GDP deflator measurement of the price level in the domestic and foreign countries, which is arbitrarily set equal to 1 in a given base year. Therefore, the level of the RER is arbitrarily set depending on which year is chosen as the base year for the GDP deflator of two countries. The changes of the RER are instead informative on the evolution over time of the relative price of a unit of GDP in the foreign country in terms of GDP units of the domestic country. If all goods were freely tradable, and foreign and domestic residents purchased identical baskets of goods, purchasing power parity (PPP) would hold for the GDP deflators of the two countries, and the RER would be constant and equal to one.

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Famous quotes containing the words purchasing power, purchasing, power and/or currency:

    Purchasing power is a license to purchase power.
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    It cannot be denied that for a society which has to create scarcity to save its members from starvation, to whom abundance spells disaster, and to whom unlimited energy means unlimited power for war and destruction, there is an ominous cloud in the distance though at present it be no bigger than a man’s hand.
    Arthur Stanley Eddington (1882–1944)

    There is no legislation—I care not what it is—tariff, railroads, corporations, or of a general political character, that all equals in importance the putting of our banking and currency system on the sound basis proposed in the National Monetary Commission plan.
    William Howard Taft (1857–1930)