An exchange refers to the act of giving goods or services and receiving goods or services of equal value in return. It encompasses various contexts, including commercial transactions, securities trading, and tax-related property exchanges.
A medium of exchange is any commodity or product that is universally accepted in a market for the purpose of trade and that functions as a standard measure of value and wealth.
Payment for goods and services made in the form of other goods and services rather than cash. It differs from barter, as the payer receives the same goods and services in return.
A sale represents an exchange of goods or services for money. The concept and details of a sale vary across fields such as finance, law, marketing, and securities trading.
The underground economy comprises economic activities that go undetected by taxing authorities, often involving barter or cash transactions. These activities include both illegal operations and those that would be legal if recorded.
