Could identical goods sold by the same company on the same territory and at the same time be attributed to different product markets? In our paper we take a closer look at the case of the wrought-steel wheel industry, which became the subject of an antitrust investigation initiated by the FAS...

We model merger control procedures as a process of sequential acquisition of information in which mergers can be cleared after a first phase of investigation. We find that the enforceability of clearance decisions at the end of the first phase is unattractive to the extent that it prevents the...