Essay On Exchange Rate Forecasting

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Exchange rates have proven to be a very important concept which determines international trade across nations – both in terms of risk determination (foreign currency risk) and for investors to make more calculated decisions. Exchange rate is defined as the price at which one nation’s currency can be converted to another. The puzzling nature of exchange rate determination can be owed to the greater volatility of exchange rates as compared to the macroeconomic fundamentals used for its determination and also due to model misspecification. In order to prove the difficulty in exchange rate forecasting, three structural models have been described, the monetary, the Mundell-Fleming and the Dornbusch model.

The Monetary Model – Flexible Prices

The monetary model is the earliest approach to exchange rate determination and serves as a benchmark from which later models have been developed. It relies on the assumptions of a vertical aggregate supply curve that indicates price flexibility, proportionality in the demand and supply for money and absolute Purchasing Power Parity (PPP). The monetary model of floating and fixed exchange rate regimes deduce that domestic currency will depreciate when domestic money stock increases and in the case of fixed exchange rate, the level of reserves decrease. In both cases for depreciation of domestic currency, domestic national income and foreign price levels decline. In a two country scenario, the domestic currency will depreciate when the foreign prices fall. In the event of domestic currency depreciation, the exchange rate appreciates and vice versa.

Drawbacks:

• The monetary model, although a useful establishment, can only be used to determine exchange rates in the long run due to its reli...

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...ately causing a significant change in the impact of such a monetary expansion
• The model makes the unrealistic assumption that the economic environment is entirely static, this doesn’t account for the changes to the global economy as a reaction to the pound’s depreciation

Economists have made several attempts to overcome some of these by extending the models; however, either due to lack of data or insufficient compatibility with predictions, their research has invariably fallen through. Research has been done to overcome the difficulty of prediction by incorporating nonlinearity of data, however even this only proves viable only over two to three years. This goes to prove that despite advancement in all other respects, the field of economics and international finance is still in need of a thorough means of exchange rate forecasting.

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