equal exchange

Economists teach that no transaction is industrially sound which does not involve an equal exchange of values.

Jan. 10—Government will surrender German surgeons and nurses held as prisoners of war only in equal exchange.

Let one ounce of gold, one ton of iron, one quarter of wheat and twenty yards of silk represent equal exchange values.

In this way the number of British seamen was too small for a regular and equal exchange.

Is not the life of a saint for the life of a felon more than an equal exchange?