Explain the concept of trade and list three types of trade, including export and import trade.

Here's the solution to the first question on trade:

a) Trade is the exchange of goods and services between two or more parties. It can occur within a country (internal trade) or between countries (international trade).

b) Three types of trade are:

• Internal trade (or domestic trade)
• International trade (or foreign trade)
• Barter trade (exchange of goods or services for other goods or services without using money)

• Export trade: This refers to the selling of goods and services produced in one country to buyers in another country.
• Import trade: This refers to the buying of goods and services from another country for use or sale in one's own country.