Combining Network Economics and Engineering in Many Scales

We have developed models and techniques for combining network economics and engineering over several scales of time and size, of which two will be described in the talk. In the longest time scale, we consider strategic planning for optical transport networks. In the second, shorter, time scale, we fix the network infrastructure, and consider some of the issues facing the service provider in offering multiple services, such as voice and data. We show that there is a common basis for optical prices and optimal routing policies. An asymptotic analysis, in which network bandwidth is scaled to grow, gives noteworthy qualitative insights.