This paper analyzes platforms and rejections in two-sided markets with network externalities, using the specific context of a payment card association. We study the cooperative antitrust determination of the interchange fee by member banks. We use a framework in which banks and merchants may...

In this paper, we discuss the case of the integration between NSK and Amatsuji Steel Ball by using the successive oligopoly model. We show that the integration does not lead to input foreclosure. However, it leads to customer foreclosure, if the fixed cost of a rival firm in the upstream market...

This paper analyzes platforms and rejections in two-sided markets with network externalities, using the specific context of a payment card association. We study the cooperative antitrust determination of the interchange fee by member banks. We use a framework in which banks and merchants may...

This article surveys the use of economic analysis in Japanese antimonopoly cases in comparison with the use of circumstantial evidence in criminal code cases. It introduces the economic thinking to be applied in uncovering secret collusive schemes, especially in proving the exchange of information.

This paper is a case study of a Japanese merger control in the airline industry. The objective is to investigate the underlying principles of the Fair Trade Commission of Japan (JFTC) through a domestic merger on airlines, where reports are available. From applying a checklist arranged by...

Using a simple downstream duopoly model with vertical relations and downstream R&D, we investigate the effect of non-assertion of patents (NAP) provisions. A monopoly upstream firm decides whether to employ NAP provisions. If it does so, it freely incorporates the R&D outcomes into its inputs....