This article addressed the problems of market definition, antitrust error, and digital platforms in Korean competition law and policy. As sound economic analysis is critical in dealing with antitrust cases, economic theories must be tested when those come to the courtroom. For a long time, on...

Competition law serves as an important tool for regulation of undertakings. In order to conduct a competition law analysis, one must first define the relevant market. However, this task is becoming more intricate in today’s digital era, especially in relation to so-called zero-price markets....

The value of sales of an undertaking infringing antitrust law is a key determinant of the size of the fine levied by a competition authority. European competition authorities rely only on the turnover the undertaking receives from the products in relation to which the infringing conduct...

As an overall proposition competition law comprises of rules that are planned to ensure the course of the competition to expand consumer welfare. Competition law has developed at a marvellous rate lately because of the gigantic changes in political reasoning and economic conduct that have...

The European Commission's recent draft Notice describes the use of supply-side substitution factors in defining relevant markets for the application of competition law. Expanding a defined market to include goods not substitutable on the demand side, based on the competitive strength of a broad...

The European Commission sought public comment on a revision of its Notice on the definition of the relevant market. Among other things, this contribution advises the Commission to: acknowledge the analytic purpose served by the relevant market in competitive assessment; apply the hypothetical...

Competition law needs to be able to rely on its most fundamental analytical tools in order to properly carry out competitive assessments. This includes market definition as the first step in virtually any competition case. And this also holds true in digital markets. Market definition has risen...

Economic analysis of competition regulation is most developed in the domain of horizontal mergers, and modern agency guidelines reflect a substantial consensus on the appropriate template for merger assessment. Nevertheless, official protocols are understood to rest on a problematic market...

This is a survey of the economic principles that underlie antitrust law and how those principles relate to competition policy. We address four core subject areas: market power, collusion, mergers between competitors, and monopolization. In each area, we select the most relevant portions of...