Wir untersuchen die Rolle von Vertragstypen und Zugangsregulierung auf Innovation und Wettbewerb. In einem Duopolmodell zeigen wir, dass Ex-post-Verträge, die nach den Investitionsentscheidungen getroffen werden, zu einer Welt führen, in der seltener Infrastruktur dupliziert wird, in der es...

We analyze the role of different contract types and access regulation on innovation and competition in telecommunications in the context of Next Generation Access Networks. Within a standard duopoly model, we show that ex-post access contracts lead less often to the duplication of investment,...

This paper analyzes the role of different contract types and access regulation on innovation and competition in telecommunications in the context of Next Generation Access Networks. Within a standard duopoly model, it is shown that ex-post access contracts lead less often to the duplication of...

We study a supply chain relationship in which the buyer outsources production of a component to the supplier. The buyer also produces a component and combines it with the supplier's input to yield the final output. The supplier can upgrade production of his input via costly innovation. Neither...

Wir untersuchen die Rolle von Vertragstypen und Zugangsregulierung auf Innovation und Wettbewerb. In einem Duopolmodell zeigen wir, dass Ex-post-Verträge, die nach den Investitionsentscheidungen getroffen werden, zu einer Welt führen, in der seltener Infrastruktur dupliziert wird, in der es...

Wir untersuchen die Rolle von Vertragstypen und Zugangsregulierung auf Innovation und Wettbewerb. In einem Duopolmodell zeigen wir, dass Ex-post-Verträge, die nach den Investitionsentscheidungen getroffen werden, zu einer Welt führen, in der seltener Infrastruktur dupliziert wird, in der es...

We study how complementarities and intellectual property rights affect the management of knowledge workers. The main results relay when a firm will wish to sue workers that leave with innovative ideas, and the effects of complementary assets on wages and on worker initiative. We argue that firms...

The purpose of this paper is to link the propensity for innovative activity to cluster spatially to the stage of the industry life cycle. The theory of knowledge spillovers, based on the knowledge production function for innovative activity, suggests that geographic proximity matters most in...

We review the role of R&D in endogenous growth theory, and describe extant empirical research – macro and micro – bearing on R&D as an engine of growth. Taking R&D to be key, while recognizing the significance of economic incentives, emphasizes knowledge as an economic object and, more...