The exchange of goods or services for money is a transaction.
The exchange and commerce of goods is based on this assumption.
Even an exchange of goods and services can help in a negotiation.
Trade is the voluntary exchange of goods, services, or both.
International trade is the exchange of goods and services across national borders.
For most people the exchange of goods occurred through social relationships.
During these visits there was a constant exchange of goods and gifts.
In other words, the transfer is made without any exchange of goods or services.
Clientelism is the exchange of goods and services for political support.
Haltwhistle was a market town for the exchange of local goods.