We examine the impact of incentive regulation—price regulation and earnings sharing regulation—on retail service quality in the U.S. telecommunications industry between 1991 and 2002. We find that incentive regulation is associated with significantly higher service quality on several...

Environmental regulators often seek to promote forefront technology for new investments; however, technology mandates are suspected of raising cost and delaying investment. We examine investment choices under an inflexible (traditional) emissions rate performance standard for new sources. We...

Previous work on the diversification of regulated firms has focused exclusively on either the costs of cross-subsidy or on the welfare gains resulting from economies of scope. Using theory and numerical simulations, we identify conditions under which gains from economies of scope and increased...