discuss several issues around the implementation of network separation as a regulatory remedy. The paper discusses network … separation. Moreover, this paper discusses the main elements of a possible test for the adequacy of network separation. A … telecommunications 4.0? (2) Are there little vertical complementarities between services along the supply chain? (3) Is network …

access to their network at regulated prices that reflect forward-looking cost. Regulated prices for unbundled network … available and the lowest cost network configuration, given the existing location of the ILEC's actual wire centers. These cost … telecommunications network. When there is uncertainty about how these prices will change over the period for which costs and prices are …

the existing network to provide advanced services. We study the impact of access regulation on the type of entry and on … entry the entrant needs access to the incumbent network. Unlike the rival, the incumbent has always the option to upgrade … firms' investments. Without regulation, we find that the incumbent sets the access charge to prevent resale based entry and …

for subscribers then extending termination charge regulation to a non-dominant network may lead to higher call prices …a), which allows for subscriber competition. We show that if a dominant network (i.e., one with the greatest market … lead to other networks raising their termination charges. If market shares are fixed, then extending termination regulation …

entrants. The next generation network architecture has the potential to alter the liberalised regulatory environment and … networks, the impact that their deployment has on competitors and potential access to the core network and access network of a … next generation network. The paper concludes by setting out some of the regulatory options that are available …

relatively successful in forcing down the price of access to the historic monopolists' fixed network. This has led, however, to …