The difference between a country's imports and exports of goods in a particular year is

Which of the following is not an aid to trade ?

An open cheque is one

Which of the following is sent by a supplier who does not want to sell on credit?

An agreement that is enforceable in law is

The fees charged on postal order by the post office is

The transfer of ownership of government business to individuals is

Which of the following is a means of payment?

Goods are usually classified into