The influential Krugman-Flood-Garber (KFG) model of balance of payment crises assumes that a fixed exchange rate is abandoned if and only if international reserves reach a critical threshold value. From a positive standpoint, the KFG rule is at odds with many episodes in which the central bank...

Exchange rates are crucial variables for each economy as they affect the price at which a country can exchange goods and services with other currency areas. A strong domestic currency makes it relatively cheap to import goods and services, but at the same time renders domestic goods and services...