International Finance - Exchange Rates


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Due to demand and supply, there is always an exchange rate that keeps changing over time. The rate of exchange is the price of one currency expressed in terms of another. Due to increased or decreased demand, the currency of a country always has to maintain an exchange rate. The more the exchange rate, the more is the demand of that currency in forex markets.

Exchanging the currencies refer to trading of one currency for another. The value at which an exchange of currencies takes place is known as the exchange rate. The exchange rate can be regarded as the price of one particular currency expressed in terms of the other one, such as £1 (GBP) exchanging for US$1.50 cents.

The equilibrium between supply and demand of currencies is known as the equilibrium exchange rate.

Equilibrium Exchange Rate

Example

Let us assume that both France and the UK produce goods for each other. They will naturally wish to trade with each other. However, the French producers will have to pay in Euros and the British producers in Pounds Sterling. However, to meet their production costs, both need payment in their own local currency. These needs are met by the forex market which enables both French and British producers to exchange currencies so that they can trade with each other.

The market usually creates an equilibrium rate for each currency, which will exist where demand and supply of currencies intersect.

Changes in Exchange Rates

Changes in currency exchange rate may occur due to changes in demand and supply. In case of a demand and supply graph, the price of a currency, say Sterling, is expressed in terms of another currency, such as the $US.

When exports increase, it would shift the demand curve for Sterling to the right and the exchange rate will go up. As shown in the following graph, originally, one Pound was bought at $1.50, but now it buys $1.60, hence the value has gone up.

Exchange Rates

Note − The world’s three most common currency transactions are exchanges between the Dollar and the Euro (30%), the Dollar and the Yen (20%), and the Dollar and the Pound Sterling (12%).



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