Trade is the voluntary exchange of goods, services and a form of economics.

Only through voluntary exchange can you reveal individual preferences and thus know the subjective value of a good.

The goal of agorists is a society in which all "relations between people are voluntary exchanges - a free market."

Markets and government provide different ways in which voluntary exchange takes place.

Trade is the voluntary exchange of goods, services, or both.

A voluntary exchange may reduce societal welfare if external costs exist.

The voluntary reciprocal exchange of resources and services for mutual benefit.

By definition, peering is the voluntary and free exchange of traffic between two networks, for mutual benefit.

Mutual aid is the voluntary and reciprocal exchange of goods within an organization.

Water quality trading is a voluntary exchange of pollutant reduction credits.