Two-sided network effects in card payment systems are analysed under different market structures, e.g., competition, one-sided monopoly, bilateral monopoly and duopoly; with and without an interchange fee; for the so-called Baxter case of non-strategic merchants. A partial ranking of market...

The causes of and extent of network externalitites in paymeny systems such as the ATM and the ACH-market have been analysed and tested in earlier studies. In this paper a similar study is made for the market for variables relevant to the evolution of the EFTPOS market in the G-10 countries,...