This conference provides an opportunity to examine how regulators collaborate with each other in the UK and compare this with the experiences of our European neighbours. This paper discusses: • the relationship between competition and regulation, as well as the way regulators use their powers;...

This paper reports the results of an experiment designed to assess the ability of an incumbent seller to profitably foreclose a market with exclusive contracts. We use the strategic environment described by Rasmusen, Ramseyer, and Wiley (1991) and Segal and Whinston (2000) where entry is...

This paper analyzes welfare under differential versus uniform pricing across oligopoly markets that differ in costs of service. We establish necessary and sufficient conditions on demand properties---cross/own elasticities and curvature---for differential pricing by symmetric firms to raise...

9-ending prices are a dominant feature of many retail settings, which according to the existing literature, is because consumers perceive them as being relatively low. Are 9-ending prices really lower than comparable non 9-ending prices? Surprisingly, the empirical evidence on this question is...

Standard antitrust optimal fines rely on a microeconomic static model. Motchenkova describes optimal antitrust dynamic sanctions and their application for EU and US methodology. For the EU fine, and based on this methodology, we find an equilibrium point for a high level of offense (2 times...

I estimate welfare loss of market power using consumer loss variation. I estimate demand elasticity of certain goods known to suffer monopolistic power. Based in Urzúa's study I employ data from household expenditure survey of Spain and Deaton ́s methodology to estimate elasticities of demand...

This study investigates an interplay between strategic CSR (corporate social responsibility) by a multiproduct corporation and merger decisions by rival firms each having single plant. We examine and compare two different timings of choosing CSR, i.e., ”merge-then-CSR” and...

The book is intended to be a reference book of Competition Economics for economists, consultants and/or practitioners. It is a modern review of demand and supply estimation, market structure, merger analysis, damage estimation, welfare loss, abuse of dominance, network effects, and a math and...

Antitrust law plays a fundamental role in promoting efficient markets and safeguarding consumer interests. In this regard, economic analysis has become a crucial tool for assessing firms' conduct and the potential anticompetitive effects of their actions in markets and consumer welfare. This...

Proponents of blockchains believe that this technology will revolutionize e-commerce. To evaluate this belief, we invite several groups of students to transact on a decentralized peer-to-peer marketplace built on the platform provided by Origin Protocol Inc., and then we conduct a survey about...