In this paper we study the impact of different forms of access obligations on firms’ incentives to migrate from the legacy copper network to next generation broadband infrastructures. We analyze geographically differential access prices of copper (that depend on whether or not an alternative fiber network has been deployed in the area) and ex-ante access obligations for fiber networks. We discuss how these regulatory schemes fare in addressing the tension among different objectives, such as the promotion of static efficiency, fostering investments in new infrastructures, and avoiding unnecessary duplication of (fiber) networks.
Bourreau, Marc, Carlo Cambini, and Pinar Dogan. "Access Regulation and the Transition from Copper to Fiber Networks in Telecoms." Journal of Regulatory Economics 45.3 (June 2014): 233-258.