We empirically estimate the substitutability of fixed and mobile services for telecommunications access using a large, US household survey conducted over the period 2000-2001. Estimated cross-price elasticities confirm that second fixed line and mobile services are substitutes for one another....

We consider the difficulty of achieving efficient prices and investments when returns on a public utility's projects are vulnerable to opportunistic ratemaking. We model the long-term relationship between a firm and its regulator as a time-dependent supergame in which the regulator sets price...

This paper compares one-part and two-part pricing in a discrete-continuous choice model, providing more extensive welfare results than prior literature. Under two-part pricing, firms may set fixed fees with or without `unit-price commitment,' where the lack of unit-price commitment is consistent...