The real exchange rate is=[tex]2480[/tex]
Exchange rate=nominal exchange rate*foreign-currency price of the same good in the foreign country
[tex]=20*120+4=2480[/tex]
In the world of finance, the exchange rate is the rate at which one currency will be exchanged for another. The majority of the time, currencies are national, but they can also be supra- or sub-national, as the Hong Kong dollar or the euro. Each country selects the system of exchange rates that will be applied to its particular currency. For instance, a currency may be hybrid, fixed, or floating. Governments have the power to impose limitations and restrictions on exchange rates. A country's currency may be robust or fragile. The economic literature is divided on the ideal national exchange rate. Instead, national exchange rate regimes are an expression of political variables.
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