In 2008, the European Commission investigated E.ON, a large and vertically integrated electricity company, for the alleged abuse of a joint dominant position by strategically withholding generation capacity. The case was settled after E.ON agreed to divest 5,000 MW generation capacity as well as...

In 2018, the European Council and the UK and Spanish governments each proposed to introduce a Digital Services Tax (DST), to be levied on the revenue of large digital platform companies earned from advertising, online intermediation, and/or the transmission of data. We offer a rationalization of...

While price-fixing cartel prosecutions have received significant attention, the policy determinants and the political preferences that guide such antitrust prosecutions remain understudied. We empirically examine the intertemporal shifts in U.S. antitrust cartel prosecutions during the period...

There is much debate on how the flow of information between firms should be organized, and whether existing privacy laws should be amended. We offer a welfare comparison of the three main current policies towards consumer privacy - anonymity, opt in, and opt out - within a two-period model of...

Personal data lie at the forefront of different business models and constitute the main source of revenue of several online companies. In many cases, consumers have incomplete information about the digital transactions of their data. This paper investigates whether highlighting positive or...

We study competition among a score of firms participating in an online market for a commodity computer component. Firms were able to adjust prices continuously; prices determined how the firms were ranked and listed (lowest price listed first), with better ranks contributing to firms' sales....

We investigate the relation between Net Neutrality regulation and Internet fragmentation. We model a two-sided market, where Content Providers (CPs) and consumers interact through Internet Service Providers (ISPs), and CPs sell consumers' attention to advertisers. Under Net Neutrality, a...

Many Internet markets rely on quot;feedback systemsquot;, essentially social networks of reputation, to facilitate trust and trustworthiness in anonymous transactions. Market competition creates incentives that arguably may enhance or curb the effectiveness of these systems. We investigate how...

The agency model used by Apple and other platform providers such as Google allows upstream firms (content providers like book publishers and developers of apps) to choose the retail prices of their products (RPM) subject to a fixed revenue-sharing rule. We show that (i) this leads to higher...

As the Internet economy has grown, so too has the need for trust. A degree of trust is a critical ingredient in virtually all economic relationships, Internet or otherwise. Every day we choose to trust plumbers, doctors, employers, employees, teachers, airlines, and others. The need for trust...