Although there is agreement on the basic economic principles that should apply to monopolization cases, there is no widely accepted paradigm for market definition or the identification of market power in such cases. This contrasts with the SSNIP paradigm of the DOJ-FTC Horizontal Merger...

This paper addresses issues concerning how to present and assess economic evidence that arose in the recent antitrust litigation involving the U.S. Department of Justice (DOJ) and America n Express (Amex). It focuses on how Amex's nature as a two-sided platform affected market definition and the...

As the importance of mobile telecommunication service increases, primary policy becomes how to fertilize competition and enhance efficiency in the mobile market. To achieve those goals, it is key to correctly assess the degree of market competition, and most importantly, to evaluate the...

The SSNIP test and Critical Loss Analysis are widely used tools for determining market definition in merger and sometimes other antitrust matters. However, the standard techniques used to test for a relevant antitrust market are incorrect when the firms in question operate two-sided platforms....

In this article we will evaluate whether the application and the efficiency of two types of empirical analysis in the assessment of mergers in jurisdictions applying the dominance and the SLC tests are different due to the application of the different legal substantive test. Thus, we will...