The correct option is Exchange rate adjustments help correct Balance of Payments imbalances..
Explanation
A flexible (or floating) exchange rate system is a regime where the currency price is determined solely by the market forces of demand and supply, without direct intervention by the central bank or government.
Option Analysis:
- It eliminates all uncertainty in international trade. is incorrect: Flexible exchange rates are inherently volatile as they fluctuate with market conditions. This volatility creates uncertainty and exchange rate risk for international trade participants, rather than eliminating it.
- Exchange rate adjustments help correct Balance of Payments imbalances. is correct: The primary advantage of a flexible system is its ability to function as an automatic stabilizer for the Balance of Payments (BoP).
- In the case of a BoP deficit (excess demand for foreign currency), the domestic currency depreciates. This makes exports cheaper and imports more expensive, naturally correcting the deficit.
- In the case of a BoP surplus, the domestic currency appreciates, making exports more expensive and imports cheaper, thereby reducing the surplus.
- It allows the government to control the price of essential imports. is incorrect: Government control over exchange rates to manage the cost of essential imports is a characteristic of a fixed or managed float system, not a flexible one.
- It completely eliminates speculative activities in the foreign exchange market is incorrect: Flexible systems are susceptible to speculation, as traders buy and sell currencies based on expectations of future market movements.
Key Takeaway:
A flexible exchange rate system acts as an automatic shock absorber, allowing the external value of the currency to adjust freely to restore equilibrium in the Balance of Payments without depleting foreign exchange reserves.