This paper relies on an engineering optimization model of the local telecommunication exchange network to calibrate the functions entering various regulatory mechanisms, from both traditional and modern (incentive) regulation, and evaluate their relative performance. The engineering process...

We analyze demand for prepaid cellular voice and short message service (SMS) in South Africa by means of a demand-and-supply structural model based on a multinomial specification fitted to a cross-sectional data set on Vodacom customers collected in 2005. We find that consumers are very...

In this paper we provide the normative benchmark characterizing the optimal allocation of resources in a gas network. By duality, we determine the consumer and producer prices, at each node of the network, which decentralize this allocation with competitive actors. From the nodal prices we...