In a floating exchange rate system, if U.S. interest rates increase relative to other countries, the U.S. dollar will tend to:

Question

Accepted Answer

Appreciate because foreign investors will seek higher returns in the U.S.. When U.S. interest rates rise relative to other countries, the U.S. becomes a more attractive destination for foreign investment. Foreign investors seeking higher returns convert their currencies into dollars to buy U.S. bonds and other dollar-denominated assets. This increased demand for dollars in the foreign exchange market causes the dollar to appreciate (rise in value relative to other currencies).

Investors move money into the U.S., not out of it, when U.S. interest rates are relatively higher  -  capital flows toward higher returns. Exchange rates are not fixed in a floating system  -  they fluctuate based on market supply and demand. While higher interest rates may slow economic growth, the dominant short-run effect on the exchange rate is the attraction of foreign capital, which overwhelms any negative growth effects.

The link between interest rates, capital flows, and exchange rates is a crucial connection on the CLEP exam. Higher domestic interest rates → capital inflows → currency appreciation → more expensive exports and cheaper imports → decreased net exports. This means monetary policy has international consequences: contractionary monetary policy (higher interest rates) not only reduces domestic spending but also reduces net exports through the exchange rate channel, making the policy more effective at reducing aggregate demand but also more painful for export-oriented industries.

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