On-line content delivery and vertical alliances between conduit and content providers are nowadays crucial issues in on-line content markets. In this paper, we discuss and compare two types of model for on-line content delivery: push and pull. We assume non-zero marginal cost for network...

In this short comment, I provide my views on "The Effect of Regulatory Intervention in Two-Sided Markets: An Assessment of Interchange-Fee Capping in Australia" (published in this issue) that was presented at the Antitrust Activity in Card-Based Payment Systems: Causes and Consequences conference.

A recent literature, dealing with special markets characterized by bilateral network externalities, is summarized and critically assessed. Specific features of these markets, in terms of pricing principles and externalities, are discussed first. Afterwards, several issues related to competition...

This paper provides a simple model of bargaining and integration within a network and considers how intra-network structure is impacted on by competition between networks. Apart from its analytical tractability, our model demonstrates how integration can be used strategically to redistribute...

Broadband Internet involves two vertical relationships: the Internet Service Provider (ISP) requires both a physical conduit (e.g. telephone or cable television lines) and content. The ISP–conduit relationship has been subject to controversial unbundling regulation, but no such rules apply to...

We study the incentives for a "diagonal" merger between two Internet Service Providers, one a wireless retail only ISP in two origination markets, and the second a vertically integrated wired retailer in one market and an upstream provider in the other. The merger's effects depend on...

On-line content delivery and vertical alliances between conduit and content providers are nowadays crucial issues in on-line content markets. In this paper, we discuss and compare two types of model for on-line content delivery: push and pull. We assume non-zero marginal cost for network...

The Comisión Reguladora de Energía of Mexico has implemented a netback rule for linking the Mexican natural gas price to the Texas natural gas benchmark price in an industry structure characterized by a vertically integrated state-owned monopoly. This paper shows that in an open economy where...