Free Market
Author:
Gregory Bresiger
Online Publish Date:
The Free Market 17, no. 3 (March 1999) Duality is the Visa and MasterCard management policy that allows banks doing business with one to issue both credit cards. It is a contractual arrangement the merits of which must be tested by the market. There is no way to know ahead of time which contracts will (and should) survive and which will (and