Using simulation to support making decisions imposes that models are thoroughly validated. We discuss widely adopted techniques for testing the validity of simulation results against real observations, as various techniques may be employed depending on the statistical features and the number of...

The ability of service to pervade all aspects of productivity creates the need for an interdisciplinary framework of service to be developed. It is however critical that any proposed service framework is developed jointly between service purveyor and stakeholders. An expected outcome from a...

The current regulatory framework in the European NGA market provides the basic principles for the gradual migration from service-based competition over the legacy copper access networks to facilities-based competition over fiber-based Next Generation Access (NGA) networks. This paper initially...

This paper studies the incentives of an unregulated monopolist to undertake the socially optimal investment in NGA networks when it takes into account the fact that the NGA deployment is a two-dimensional investment decision concerning both the quality (or equivalently, technology) and the...