1. Visible Trade: the import and export of goods in physical form. For example, machines, equipment, furniture, etc. are all commodities in physical form, and the import and export of these commodities is called tangible trade.
2. Invisible Trade: the import and export of technology and services without physical form. The transfer of patent rights, tourism, and the cross-border provision of services by financial and insurance companies are all commodities without physical form, and their import and export are called invisible trade. 4. Current account revenue and expenditure. This is the most important item in the balance of payments, and it is a balance of payments item that often occurs between the country and foreign countries. If there is a current account surplus, it means a net increase in the country's foreign wealth. Indicates a country’s net investment abroad, including goods and services. The current account deficit means that the country concerned imports more goods and services and becomes an international debtor, which means that foreign countries have net investment in the country. The balance of the current account is equal to the difference between a country's net national product and its total domestic expenditure. If the net national product is greater than total domestic expenditure, the excess is equivalent to various forms of foreign investment, including the accumulation of international reserve assets. If the total expenditure is greater than the net national product, the excess is equivalent to the import of foreign capital in the form of various goods, services or capital. The current account is divided into three categories: trade balance, labor balance and transfer.
5. The classification of all trade terms stipulated in the "2000 Incoterms".
Group 1: Group E (the seller delivers the goods to the buyer at his location)
Ex Works (named place)
Group 2: Group F (the seller must deliver the goods to the carrier designated by the buyer)
FCA: Free Carrier (named place)
FAS: Free Alongside Ship (named port of shipment)
Free Alongside Ship (named port of shipment)
FOB: Free On Board (named port of shipment)
Free on board (designated port of shipment)
Group 3: Group C (the seller must sign a transportation contract, but the risk of loss or damage to the goods and events occurring after loading and departure We are not responsible for the additional costs)
CFR: Cost & Freight (named port of destination)
Cost & Freight (named port of destination)
CIF: Cost, Insurance and Freight (named port of destination)
Cost, Insurance and Freight (named port of destination)
CPT: Carriage Paid To (named place of destination)
Carriage and Insurance Paid To (named place of estination)
CIP: Carriage and Insurance Paid To
(named place of estination)
Carriage and Insurance Paid To (Designated destination)
Group 4: Group D (the seller must bear all costs and risks required to deliver the goods to the country of destination)
DAF: Delivered at Frontier ( named place) Border delivery (named place)
DES: Delivered ex Ship (named port of destination)
Delivered on board (named port of destination)
DEQ： Delivered ex Quay (named place of destination)
Delivery at the dock (named place of destination)
DDU： Delivered Duty Unpaid (named place of destination)
Delivery Duty Paid (named place of destination)
DDP: Delivered Duty Paid (named place of destination)
Delivery Duty Paid (named place of destination)