“Exchange rate” is the price of one currency in relation to
another. In a slightly different perspective, it expresses the national
currency’s quotation in respect to foreign ones. Thus, exchange rate is
a conversion factor, a multiplier or a ratio, depending on the direction
of conversion. It is believed that if exchange rates can freely move, it
may turn out to be the fastest moving price in the economy, bringing
together all the foreign goods with it. In the existing literature,
(most of the time) volatility comes with the exchange rate. Volatility
is defined as “instability, fickleness or uncertainty” and is a measure
of risk, whether in asset pricing, portfolio optimisation, option
pricing, or risk management, and presents a careful example of risk
measurement, which could be the input to a variety of economic
decisions.