We examine the interaction between two interconnected networks (e.g., two LECs) and a third network (e.g., an IXC) seeking access to their customer base. The IXC could either interconnect with both LECs or interconnect with only one LEC and transit calls to the other LEC via the …rst LEC’s...

Internet technologies are widely recognized for their promise as enablers of collaborative computing both within and among organizations. The presence of heterogeneous systems based on different technological platforms in organizations makes the implementation of network collaboration very...

We seek to estimate the causes and magnitudes of network externalities for the automated clearinghouse (ACH) electronic payments system, using a panel data set on individual bank usage of ACH. We construct an equilibrium model of consumer and bank adoption of ACH in the presence of a network....

This research examines the impact of switching costs on vendor choice in the market for routers and switches. We show that despite the use of open standards which attempt to enhance interoperabilities for equipments from different vendors, vendors in this market are able to maintain high...

56K modems were introduced under two competing incompatible standards. We show the importance of competition between Internet Service Providers in the adoption process. We show that ISP’s were less likely to adopt the technology that more competitors adopted. This result is particularly...

We analyze a dynamic model in which Þrms and consumers choose to adopt one of two technologies or delay their adoption. Adoption allows agents to trade with other adopters of the same technology. We show that there is an inefficient equlibrium in which Þrms differentiate across standards and...

This paper presents and analyzes the main aspects of the historical development and the current issues at stake in the South American Internet access market. We have studied the interconnection schemes for the exchange of local and regional traffic in the South American region, trying to...