the balance of payments consists of current account, capital and financial account and international investment position. The standard components of balance of payments are current account, capital account and financial account. The current account includes:

(1) goods: including general goods, goods for processing, goods repair, procurement of various means of transport, and non-monetary gold;

(2) Services: including transportation, tourism, communication, construction, insurance, finance, computers, royalties, royalties (copyrights, etc.), personal entertainment, cultural services, other commercial services and government services not mentioned elsewhere;

(3) Income: including employee remuneration and investment income (direct investment and indirect investment);

(4) current transfer: it includes other transfers except the following three items, namely, the transfer of ownership of fixed assets, the transfer of funds on the condition of buying or abandoning fixed assets, and the cancellation of debts that creditors do not want to return, such as insurance premiums and remittances.