EU Merger Control Regulation No 4064/89 tended to rely on a dominance test, based on the market share of undertakings, to indicate the level and potential changes in market power. The use of such in differentiated product industries is questionable. New EC Merger Regulation No 139/2004...

An overwhelming stream of research suggests that online reviews impact firms' profits positively. In this study, we show conditions where this may not hold true. In a vertical market, we identify strategies that a manufacturer can utilize to affect a retailer's attitude towards publicizing...

This paper finds evidence of an inverse U shape in the number of cartels detected by a Competition Agency (CA) over its lifetime. We interpret this as evidence that, as the CA builds up experience in enforcement, this feeds back into the business community to deter future cartel formation. We...

The price effect of past mergers has been extensively researched over the last two decades. The overwhelming majority of these studies pool post-merger data to estimate the average price effect of a merger. Merger guidelines agree that mergers should be approved if market dynamics, such as...

In this article, we revive an old debate in the law and economics literature: the relative role of public and reputational sanctions in deterring misconduct. We propose an empirical framework, which accounts for public sanctions (in our case cartel fines) and a more direct measure of...