The question of whether bundles of telecommunication services are relevant product markets is addressed. As a first step, demand for bundles of services, as well as the associated services, is modeled as a discrete choice problem with a potentially large number of products. A unique invoice...

We study a merger between two Dutch supermarket chains to assess its effect on the depth as well as composition of assortment. We adopt a difference-in-differences strategy that exploits local variation in pre-merger competitive conditions and thus in the merger outcomes. To define our control...

We examine the effect of Amnesty Plus on dynamic cartel formation in a multimarket setting. The Amnesty Plus program has been adopted as part of the US Corporate Leniency Policy in 1999 and is now vigorously advertised as one of the most compelling tools in generating successful cartel...

Efficiency defence and merger remedies are key components in most merger control regimes. Although in many jurisdictions both the provision of efficiency-related evidence and remedy offers are at the merging firms' discretion, most previous works have only analysed them separately. This paper is...

This paper examines the optimal use of remedies and the efficiency defense for merger control. We develop a framework in which merger efficiency gains are endogenously determined and are not observed by the Competition Authority. The possibility of an efficiency defense can push firms to design...

In procurement settings, mergers among suppliers reduce buyers' choice sets and can harm buyers by eliminating their preferred supplier or reducing their negotiating leverage. I develop a stochastic economic model that predicts the effects of mergers based on information that commonly is...

I examine the efficiency of patent pooling in a setting that allows for the interplay between the standards process, in which owners of essential intellectual property (IP) develop a new product, and the subsequent pooling decision, in which IP prices are coordinated. If one of the IP owners is...

This paper considers the regulated monopoly that pads or falsifies its costs to increase the cost reimbursement it receives from the regulator. Contrary to the standard literature on cost regulation, the firm engages in cost reducing investment before it enters into a regulatory contract. This...

We provide an efficiency justification for the imposition of the uniform pricing constraint in universal service obligations (USO), where USO are defined as a set of constraints imposed on firms belonging to a network industry. In addition to the uniform pricing (UP) constraint, which is an...

The experimental literature on antitrust enforcement provides robust evidence that communication plays an important role for the formation and stability of cartels. We extend these studies through a design that distinguishes between innocuous communication and communication about a cartel,...