We examine empirically whether the size of a firm using a network affects the scope of its network usage, and consequently network effects and lock-in within the network. We use the example of hospital information exchange. We find that hospitals in larger hospital systems are more likely to...

The net neutrality debate has brought out economic rationale for and against a variety of proposals of the broadband service providers to differentiate between different classes of users. Broadband users are characterized by the differing amounts of content they request online, as well as their...

We discuss issues of the application of antitrust law and regulatory rules to network industries. In assessing the application of antitrust in network industries, we analyze a number of relevant features of network industries and the way in which antitrust law and regulatory rules can affect...

Some policymakers argue that consumers need legal protection of their privacy before they adopt interactive technologies. Others contend that privacy regulations impose costs that deter adoption. We contribute to this growing debate by quantifying the effect of state privacy regulation on the...

This paper discusses how antitrust law and regulatory rules should be applied to network industries. In assessing the application of antitrust in network industries, we analyze a number of relevant features of network industries and the way in which antitrust law and regulatory rules can affect...

We study how net neutrality regulations affect high-bandwidth content providers’ investment incentives in quality of services (QoS). We find that the effects crucially depend on network capacity levels. With a limited network capacity, the prioritized delivery services are complements to...

I discuss the design and implementation of a SSNIP test in order to identify the relevant market in a media market. I argue that in such a two-sided market the traditional SSNIP test cannot be applied as it is usually conceived but rather should be modified in order to take into account indirect...