In this paper we study, as in Jeon-Menicucci (2009), competition between sellers when each of them sells a portfolio of distinct products to a buyer having limited slots. This paper considers sequential pricing and complements our main paper (Jeon- Menicucci, 2009) that considers simultaneous...

We consider competition among n sellers when each of them sells a portfolio of distinct products to a buyer having limited slots (or shelf space). We study how bundling affects competition for slots. When the buyer has k number of slots, efficiency requires the slots to be allocated to the best...

We study competition among upstream firms when each of them sells a portfolio of distinct products and the downstream has a limited number of slots (or shelf space). In this situation, we study how bundling affects competition for slots. When the downstream has k number of slots, social...

Site licensing of e-journals has been revolutionizing the way academic information is distributed. However, many librarians are concerned about the possibility that publishers might abuse site licensing by practicing bundling. In this paper, we analyze the private and social incentives for the...

We review the Economics literature on newspapers and magazines. Our emphasis is on the newspaper industry, especially in the United States, given that this has been the focus of existing research. We first discuss the structure of print media markets, describing the rise in the number of daily...

The European Union’s Digital Markets Act (DMA) initiative, which is set to introduce ex ante regulatory rules for “gatekeepers” in online platform markets, is one of the most important pieces of legislation to emanate from Brussels in recent decades. It not only has the potential to...

This paper discusses the general characteristics of online markets from a competition theory perspective and the implications for competition policy. Three important Internet markets are analyzed in more detail: search engines, online auction platforms, and social networks. Given the high level...

Digital platforms frequently refer their users to competitors. We show that these references induce a business-sharing effect that may relax competition for users, resulting in lower quality of content. More surprisingly, user surplus may also decrease as the quality effect may overwhelm the...

We study how digital platforms can choose competitive strategies to influence the number of multihoming consumers. Platforms compete for consumers and advertisers. A platform earns a premium from advertising to singlehomers, as it is a gatekeeper to these consumers. Competitive strategies...

Over the last few years, the European Commission and the competition authorities of a number of (Member) States have been busy investigating transactions leading to the buying/selling of premium content rights. These cases have been triggered by several factors. First, premium content...