Die Regulierung eines Marktes ist das Ergebnis eines komplexen Prozesses, der sowohl von politischen als auch wirtschaftlichen Kräften beeinflusst wird. In drei sich ergänzenden Essays wird die Frage ökonometrisch untersucht, wie die Wirkungen und die Leistungsfähigkeit von Regulierungen neu...

Diese Dissertation stellt ein strukturelles ökonometrisches Modell der Nachfrage mit direkten Netzwerkeffekten vor. Der strukturelle Ansatz ermöglicht es, den Umfang von Netzwerkeffekten and Netwerkkompatibilität zu identifizieren. Nach unserem Wissen ist es das erste Modell, das diese...

I develop a structural demand model for mobile telephone service, which facilitates the identification of network effects and compatibility between networks. Network effects are measured by the dependence of consumer willingness to pay on the installed base of subscribers. Compatibility is...

This paper empirically assesses the impact of the intensity of competition on investment in new technologies within the mobile telecommunications industry. Using firm level panel data and an instrumental variable estimation it finds an inverted-U relationship between competition intensity and...

According to static models of industrial organization, a rise in competition decreases prices. In this paper, I test whether this conclusion can be reversed in the mobile telecommunications markets where dynamic e ciency e ects might be signi cant. The empirical test relies on the change in the...

In this paper, we design a theoretical model to analyze the impact of the number of firms on investment in the wireless communications industry. Our model extends the Salop’s framework by introducing investment in quality that either reduces the marginal cost of production or shifts the...

In theory, network profits are independent of the reciprocal termination rates when operators charge nondiscriminatory call prices (Laffont, Rey and Tirole, 1998). Additionally, termination rates can be used to subsidize subscriber acquisition cost. This issue is typically known as a "waterbed...

The optimal market structure in the mobile industry is an important topic in the mobile industry. In this paper, we use two theoretical frameworks and a structural estimation approach to assess the effects of market structure on consumer surplus in symmetric mobile markets. When mobile services...

How does the choice to regulate a market take place? And how does regulation influence market outcome? We argue that to explicitly model the simultaneity between these two issues makes a qualitative difference in the analysis of the role of regulation, and empirically test our model in the U.S....

This paper empirically investigates contrasting views on the politics of economic policy. Merging different databases, we test various predictions coming form different strands of literature, with the aim of explaining the cross-sectional and temporal variation in the degree of regulatory...