The European Commission (EC) has long intended to play a leadership role in setting a pan-European competition policy; yet, both centralized and decentralized tendencies have been manifest in the European context for competition policy. It is not clear then whether these leadership intentions...

One approach to merger simulations used in antitrust cases is to calibrate demand from market shares and a few additional parameters. When the products involved in the merger case are differentiated along several dimensions, actual diversion ratios may be very different from those calculated...

It is common to apply a SSNIP test with a uniform price increase on all products in the candidate market. We show that in situations with asymmetries - for example variations in revenues - a uniform SSNIP test may suggest that the relevant market should include more products even though it could...

This paper presents empirical evidence about the ability of event studies to capture mergers' ex-post profitability as measured by accounting data. We use a sample of large horizontal concentrations during the period 1990-2002 involving 482 firms either as merging firms or competitors, and...

This article investigates the determinants of subsidiaries’ profitability using a unique dataset of more than 23,000 listed and unlisted subsidiaries worldwide over the period 1994–2005. We find that profitable parent companies are able to transfer some of the intangible assets that make...