Voluntary exchange,

Definition of Voluntary exchange:

1. The free exchange of goods and services between buyers and seller in some sort of marketplace.

How to use Voluntary exchange in a sentence?

1. The voluntary exchange between the car salesman and his prospect seemed fair, as he offered him additional coverage on his warranty.
2. You should look to get the most out of any voluntary exchange and try to find sellers that offer the best rates.
3. I was happy that I was in a voluntary exchange market because it worked better for my budget and that made me safer.