Finance is the accommodation of money, and it is the general name of money circulation, credit activities and related economic behaviors. Including currency issuance and withdrawal, bank deposits and loans, securities issuance and circulation, foreign exchange trading, insurance and trust, domestic and international currency payment and settlement, etc.

Finance involves financial subject, financial object and their relationship. Financial subjects are people and units in financial activities, including investors and financiers; Financial objects are financial commodities that people participate in trading, including stocks, bonds, futures options and so on. Financial relationship is who is qualified to issue stocks and other securities and who is qualified to buy corresponding financial products.