We study the impact of the access charges of copper and fiber unbundling on an incumbent's incentives to invest in fiber access networks. Once the fiber deployment is in place, the incumbent and the entrant compete for consumers in both copper and fiber markets. We show that when the regulator...

Telecoms regulators have increasingly signaled concerns about the incentives and ability of vertically integrated incumbents to engage in discriminatory behavior against competitors in downstream markets. The UK Office of Communications (Ofcom) has recently accepted undertakings from British...

In this paper we study how the coexistence of access regulations for legacy (copper) and fiber networks shapes the incentives to invest in network infrastructure. To this end, we develop a theoretical model explaining investment incentives by incumbent telecom operators and heterogeneous...