The "ladder of investment" is a regulatory approach proposed by Cave (2006), which has been widely embraced by national regulatory authorities in the European telecommunications sector. The approach entails providing entrants, successively, with different levels of access--the "rungs" of the...

This paper aims to introduce issues that relate regulation and innovation in the telecommunications industry. We try to address the following question: which types of regulatory schemes are likely to promote innovation in a fast-growing telecommunications industry? Section 2 analyses ex ante...

A decade into the liberalization of the Turkish mobile industry, the sector remains one of the most concentrated in Europe. This paper analyzes the links between the regulatory environment and competitive outcomes in the Turkish context. The paper argues that 7 years of duopoly incumbency...

In this paper, we first provide a simple framework for cooperation in product development between competitors. We put forward the trade-off between the benefits obtained through development cost-sharing and the cost of intensified competition due to reduced product differentiation, which implies...

We consider an unregulated incumbent who owns a broadband infrastructure and decides on how much access to provide to a potential entrant. The level of access determines the amount of investment the entrant needs to undertake to enter the market, and the intensity of post-entry competition. We...

Most digital goods have a modular design; that is, they consist of complementary and distinct building blocks, called modules. Modular product design, in contrast to integrated (or integral) design, enables alteration of a specific module that is usually assigned for a specific function without...