This paper investigates the strategic choice between introducing a process or a product innovation in a duopoly model with vertical differentiation, comparing the outcomes in case of Bertrand and Cournot competition. It is shown that under both competitive regimes three equilibria in innovation...

We examine a vertically differentiated duopoly where firms invest in process and product innovation and then compete in prices under full market coverage. We show that (i) process innovation fosters (hinders) product innovation for the low-quality (high-quality) firm; (ii) the firm which is...

When adjustment costs are present, cyclical preference and technology heterogeneities in aproduct’s markets induce cycles in production. We exploit cyclic and dihedral groupinvariances in an industry’s cost technology to describe these patterns. We show whenequilibrium cyclical pricing and...

This chapter surveys research on agent-based models used in finance. It will concentrate on models where the use of computational tools is critical for the process of crafting models which give insights into the importance and dynamics of investor heterogeneity in many financial settings.

den letzten Monaten und Jahren wird insbesondere in den USA aber auchin Europa eine intensive Diskussion darüber geführt, inwiefern die bisherpraktizierte Gleichbehandlung der Datenpakete im Internet regulatorischfestgeschrieben werden sollte (vgl. z.B. Hahn & Wallsten, 2006; Sidak,2006; van Schewick,...

In this paper we address the following question: is it more profitable, for an entrant in a differentiatedmarket, to acquire an existing firm than to compete? We illustrate the answer by considering competition inthe banking sector.....

Within a production theoretic framework, this paper considers an axiomatic approach to benchmark selection. It is shown that two simple and weak axioms: efficiency and comprehensive monotonicity characterize a natural family of benchmarks which typically becomes unique. Further axioms are added...

Drawing upon the science of complexity we propose a network-centric, complex-systems internationalization (NCCSI) perspective of firm internationalization that can help us understand observed patterns of internationalization that are difficult to explain using traditional theories. While...

Firms are required to provide financial information via the financial statements and the MD&A—a narrative explanation of the financial statements. Our study examines how firms use the MD&A channel when their financial statement channel is inadequate. We proxy for the adequacy of the financial...

A review of the literature on cost sharing solutions for the minimum cost spanning tree problem is proposed, with a particular focus on the folk and Kar solutions. We compare the characterizations proposed, helped by some equivalencies between sets of properties.