What might a central bank do to stop a fall in the value of its country's currency?

6.3.1 definition of foreign exchange rate：Floating and fixed systems.

6.3.2 determination of foreign exchange rate in foreign exchange market ：The demand for and supply of a currency in the foreign exchange market and the determination of the equilibrium foreign exchange rate.

6.3.3 causes of foreign exchange rate fluctuations：Including changes in demand for exports and imports, changes in the rate of interest, speculation, and the entry or departure of MNCs.

6.3.4 consequences of foreign exchange rate fluctuations：The effects of foreign exchange rate fluctuations on export and import prices and spending on imports and exports via the PED.

6.3.5 floating and fixed foreign exchange rates：The difference between, and the advantages and disadvantages of, a floating foreign exchange rate and a fixed foreign exchange rate system.