This paper deals with the sizing of telecommunications networks offering private line service to a few clients. The clients ask for some transfer capacity between some pair of nodes, but their demand is uncertain. In case of high demand and insufficient capacity, some clients may be denied the...

This paper describes a method for apportioning contingency in a probabilistic network. It distinguishes between two requirements for contingency: for high variance crucial activities, and for high float noncritical activities. This enables a logical two-step apportionment, the first based upon...

We introduce a spatial cost topology in the network formation model analyzed by Jackson and Wolinsky, Journal of Economic Theory 71 (1996), 44-74. This cost topology might represent geographical, social, or individual differences. It describes variable costs of establishing social network...

In this paper we develop a new theory of static equilibrium in congested transportation networks. Our considerations are based on a physical meaning of the flows rather than on an artificially chosen model of travel time functionsl We introduce a concept of the stable equilibrium and prove the...

We examine, in a network market open to competition, various mechanisms of allocation and funding for "universal service obligations". The obligations we consider are geographic "ubiquity" and non discrimination. We analyze, both from an efficiency and an equity point of views the respective...

This paper extends the theoretical framework for exploring the diffusion of new technologies through firms and industries. It is assumed that information about new and profitable technologies is not immediately available to all of the agents in the economy; this information spreads through the...

This paper develops a model of pricing to deter entry by a sole supplier of a network good. The authors show that the installed user base of a network good can serve a preemptive function similar to that of an investment in capacity if the entrant's good is incompatible with the incumbent's good...

Little attention has been given to the effects of functional form mis-specification on the estimation of stochastic frontier models and to the possibility of using backpropagation neural netwok as a flexible functional form to approximate the production or cost functions. This paper has two main...