Posted by Social Science Research Network
Market Definition, Market Power Louis Kaplow (Harvard Law School)
Abstract: Market definition and market power are central features of competition law and practice but pose serious challenges. On one hand, market definition suffers decisive logical infirmities that render it infeasible, unnecessary, and counterproductive, and the practice of stating market power requirements as market share threshold tests is incoherent as a matter of empirics and policy. On the other hand, market power is often probative of the desirability of liability, yet the typically assumed functional relationship is unexplored and often implausible. These latter deficiencies are addressed through a ground-up analysis of the channels by which market power can be relevant. It is important to explicitly and simultaneously consider both anti-competitive and pro-competitive explanations for challenged practices and to attend to the magnitudes of the social consequences of correct and mistaken imposition of liability in order to identify the various ways and senses in which market power bears on optimal decision-making.
Featured News
Redfin Settles $9.2M Commission Inflation Lawsuits
May 7, 2024 by
CPI
DOJ Supports Colorado’s Efforts to Block Kroger-Albertsons Merger
May 7, 2024 by
CPI
Japan Considers Regulation of AI Developers
May 7, 2024 by
CPI
European Commission Extends Decision Deadline for Ita-Lufthansa Merger
May 7, 2024 by
CPI
UK, US and Australia Sanction Senior Leader of LockBit Cybercrime Gang
May 7, 2024 by
CPI
Antitrust Mix by CPI
Antitrust Chronicle® – Economics of Criminal Antitrust
Apr 19, 2024 by
CPI
Navigating Economic Expert Work in Criminal Antitrust Litigation
Apr 19, 2024 by
CPI
The Increased Importance of Economics in Cartel Cases
Apr 19, 2024 by
CPI
A Law and Economics Analysis of the Antitrust Treatment of Physician Collective Price Agreements
Apr 19, 2024 by
CPI
Information Exchange In Criminal Antitrust Cases: How Economic Testimony Can Tip The Scales
Apr 19, 2024 by
CPI