Foreign exchange is the creditor's rights held by the monetary management authorities (central bank, monetary management institutions, foreign exchange stabilization fund and Ministry of Finance) in the form of bank deposits, treasury bonds and long-term and short-term government securities. , which can be used when the balance of payments is in deficit.

Including foreign currency, foreign currency deposits, foreign currency securities (treasury bonds, treasury bonds, corporate bonds, stocks, etc.). ) and foreign currency payment vouchers (bills, bank deposit vouchers, postal savings vouchers, etc.). ).

Funds can be divided into broad sense and narrow sense. Broadly speaking, a fund refers to a certain amount of funds set up for a certain purpose. It mainly includes trust and investment funds, provident funds, insurance funds, retirement funds and funds of various foundations. People usually refer to funds mainly as securities investment funds.