Regulating former telecommunications monopolies has often been legally and technically complex. Among other options, incumbent operators were mandated to share, sell or split their infrastructure thus encouraging market entry. Given the importance of broadband technologies, competitive access...

In a firm model of vertical product differentiation, three distinct patterns of market shares emerge as an equilibrium outcome, reflecting three distinct strategies in respect of timing of the introduction of new products. The main novelty, relative to the existing literature on vertical product...

The paper assesses the scope for competition inducing infrastructure regulation in furthering the diffusion of innovation. The paper uses data on the adoption of broadband services comprising a global panel of 167 countries. The effects of different regulatory provisions are assessed. The result...

The study analyses the market for semiconductor memory chips, in particular EPROMs. Semiconductors are very interesting industry for studying empirically the dynamics of innovation. Given the short product life cycles of generations of chips, the market dynamics unfold much more rapidly than in...

This paper sets out to model the evolution of market shares in the semiconductor industry. The time profile of market shares for different firms in this industry has shown a striking regularity over successive generations of products. In a model of vertical product differentiation three distinct...

The paper illustrates in some detail the key variables that are affecting the mobile telecommunications sector in the European Union. The sector is expanding rapidly in Europe owing to a favourable technological and regulatory environment. The increasingly competitive market structure delivers...