Supply and Demand Determines Currency Value in Floating Rates

Steps:

• Recall that floating exchange rates are market-driven, not fixed by governments.
• Identify that currency value is set where supply equals demand in forex markets.
• Eliminate options tied to fixed-rate factors like government intervention or balances.
• Confirm A matches the core economic principle of flexible rates.

Why A is correct:

• In floating systems, exchange rates are determined by the equilibrium of supply (from exports, capital outflows) and demand (from imports, capital inflows) per basic market forces in international economics.

Why the others are wrong:

• B: Purchasing power parity influences long-term rates but doesn't directly set short-term market values.
• C: Current account balances affect supply/demand indirectly but aren't the direct determinant.
• D: Interest rate differentials influence capital flows and thus demand, but the ultimate value comes from overall market supply and demand.

Final answer: A