Extrinsic value is value which arises because of an agreement: Although the intrinsic value of a €100 note is not much more than the value of any similar piece of paper with a pretty picture on it, it has a practical value (an extrinsic value) of €100. If its issuing authority were to fail to honor the note's value, it would soon become nearly worthless. This happened recently with the Argentinian peso.

cf. Intrinsic value

Economics