We examine the effects of mobile termination rate regulation in asymmetric oligopolies. We do this by extending existing models of asymmetric duopoly and symmetric oligopoly where consumer expectations about market shares are passive. We first calibrate product differentiation parameters using...

We consider a two-sided market model with a monopolistic Internet Service Provider (ISP), network congestion sensitive content providers (CPs), and Internet customers in order to study the impact of Quality-of-Service (QoS) tiering on service innovation, broadband investments, and welfare in...

Consumers buy internet access from Internet Service Providers (ISPs) to reach online content providers. Under net neutrality, an ISP is not allowed to discriminate between content providers, even though it might have an incentive to do so. An ISP might want to sell a “fast lane” to content...

Since 2008, multiple smartphone platforms have launched versions of “app stores”, marketplaces where consumers can purchase and download software applications for their smartphone. This paper provides evidence for both demand and supply of “apps” using data on the size and composition of...

In this article I analyze the effects of a recent reform intended to decrease switching costs in the cellular industry. The reform, implemented in Chile in 2012, allowed cell phone users to switch operators without any contract restriction while keeping their wireless number. Its aim was the...

We estimate a dynamic oligopoly entry game in the early U.S. local telephone market. We observe the identities of potential entrants into local markets and therefore the waiting time of each potential entrant before it commits actual entry. To capture the feature of the data, we allow firms to...

Signal quality is a significant contributor to the overall quality of wireless telephone service, which competitive analyses often overlooks. To understand the competitive impact of signal quality investment on further consolidation in this industry, I use a market research survey of choice of...

We test the effect of entry on the tariff choices of incumbent cellular firms. We relate the change in the breadth of calling plans between 1996, when incumbents enjoyed a duopoly market, and 1998, when incumbents faced increased competition from personal communications services (PCS) firms....

We document entry and capacity expansion in US long-distance fiber-optic networks before and during the “telecom boom.” We disentangle the many swaps and leases between networks in order to measure owned route miles versus route miles shared with other carriers. Entry appears much more...