The paper aims at providing a thorough overview of the special nature of card payment systems that are a well-known example of two-sided markets. Indeed, card payment systems are an instance of two-sided market because they serve two different groups of customers or end-users (i.e. cardholders...

Platforms exploit consumers' strong personal preferences for a particular payment system to set payment restrictions and discriminatory strategies resulting in unfair competition. This harms users' rights, imposes additional costs on users, and hinders the healthy development of the platform...

Platforms exploit consumers' strong personal preferences for a particular payment system to set payment restrictions and discriminatory strategies resulting in unfair competition. This harms users' rights, imposes additional costs on users, and hinders the healthy development of the platform...

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 s case of non-strategic merchants. A partial ranking of market...