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...

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...