We explore the separation of powers between the legislative and the executive branch of government as a way of overcoming the dynamic consistency problem of regulatory policy towards investment. We model the industry as a regulated duopoly. The incumbent is a vertically integrated firm that owns...

Switching costs increase the rigidity of consumers demand and lessen competition between firms, effects that are particularly relevant in the mobile voice services market. This paper characterizes the most important mobility restrictive factors for consumers in this market, presenting specific...

We analyze …firms incentives to bundle and tie in the telecommunications industry. As a fi…rst step, we develop a discrete-choice demand model where fi…rms sell products that may combine several services in bundles, and consumers choose assortments of different types of products available...

The development of the broadband market is a key aspect of the economic and social growth of a country. However, despite the importance and the development of broadband market in Portugal in recent years, especially with the explosion of the number of mobile broadband accesses, the studies for...