We model the bilateral threat of entry between firms in two industries, which is characteristic of a number of IT industries. An endogenous choice of product scope by firms in each industry affects both the extent of product differentiation for incumbent oligopolists as well as the fixed costs...

On-demand computing provides a new way for companies to manage and use their ITinfrastructure. This model of corporate computing radically changes the way companies pay for theirIT infrastructure, basing it on quot;pay per usequot; rather than on the fixed infrastructure investments...

This paper presents a model of local network effects in which agents in a social network each value the adoption of a product by a heterogeneous subset of other agents in their quot;neighborhoodquot;, and have incomplete information about the structure and strength of adoption complementarities...

We study how electronic markets that facilitate broader inter-firm transactions affect the vertical scope of emerging IT-enabled extended enterprises. We do so by modeling firms in a three-tier value chain who are each connected to a common electronic market that facilitates direct business...