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Theories of Exchange Rate by Mind Map: Theories of Exchange Rate

1. Purchasing Power Parity (PPP)

1.1. The PPP theory focuses on the inflation- exchange rate relationships. If the law of one price were true for all goods and services, we could obtain the theory of PPP.

1.1.1. Absolute form of PPP

1.1.1.1. The absolute PPP theory postulates that the equilibrium exchange rate between currencies of two countries Is equal to the ratio of the price levels in the two nations. Thus, prices of similar products of two different countries should be equal when measured in a common currency as per the absolute version of PPP theory. (The Law of One price)

1.1.2. Relative form of PPP

1.1.2.1. The relative form of PPP theory is an alternative version which postulates that the change in the exchange rate over a period of time should be proportional to the relative change In the price levels in the two nations over the same time period.

2. The Interest Rate Parity (IRP)

2.1. A forward exchange rate is the rate that is currently paid for the delivery of a currency at some future date. It has the spot rate as its base, plus the interest factor. The interest factor which is factored into the rate is called the interest rate parity.

3. The International Fisher Effect (IFE)

3.1. The FE theory suggests that foreign currencies with relatively high interest rates will depreciate because the high nominal interest rates reflect expected inflation.