First we need to explain what fixed and floating exchange rates are. Fixed exchange rate regime is a regime in which central banks buy and sell their own currencies to keep their exchange rates fixed at a certain level (Mishkin G-4). Floating exchange rate regime is an exchange rate regime in which the value of currencies are allowed to fluctuate against one another (Mishkin G-5). Floating exchange rates are like a shock absorber. When export demand declines, depreciation makes domestic goods more competitive abroad, stimulates an offsetting expansion in demand, and dampens the contraction in domestic economic activity (FRBSF).
For a short-term floating rates would be good during a shock such as oil price increases, but not for long-term. During this short-term, floating rates influence economic activity. With a fixed exchange rate, economic activity adjusts to the exchange rate, where with a floating rate the exchange rate is a reflection of economic activity. Both fixed and float exchange rates have strengths and weaknesses.
Floating exchange rates did not produce reduction in the US balance of payment deficit during the early 1980s because influential economic arguments supported fixed exchange rate regimes as an anchor to break hyper- and high inflation in many emerging markets (Treasury).
Because foreign exchange crises lead to large changes in central banks’ holdings of international reserved and thus significantly affect the official reserve asset items in the balance of payment.
The system that was developed to replace floating exchange rates was Dirty Float. Dirty Float is a system where countries attempt to...