This papers analyses how horizontal mergers affect innovation activities of the merged entity and its non-merging competitors. We develop an oligopoly model with heterogeneous firms to derive empirically testable implications. Our model predicts that a merger is more likely to be profitable in...

Given various recent antitrust investigations on the retail sector, we deal with uncovering demand systems substitution patterns for a particular market (diapers) to investigate the inter-format competition (supermarkets vs. discounters vs. drugstores). Using the uncovered demand system we...

Am 26. Februar 2007 hat die EU-Kommission ein beschleunigtes Vertragsverletzungsverfahren gegen Deutschland wegen der Einführung von angeblichen "Regulierungsferien" in dem jüngst novellierten Telekommunikationsgesetz (TKG) eröffnet. Die Kommission vermutet, dass die dort getroffene...

This paper examines the consequences of introducing mobile number portability (MNP). We show that if the sole effect of introducing MNP is the abolishment of switching costs, MNP unambiguously benefits mobile customers. However, if MNP also causes consumer ignorance, as telephone numbers no...

In order to encourage competition in network-based industries such as telecommunications, some jurisdictions have adopted regulatory rules which prevent the incumbent service provider from selectively cutting prices in response to market entry. Given such bans on price discrimination, the...

Der Lohnfindungsprozess in Deutschland ist einem starken Wandel unterworfen, denn das Flächentarifsystem befindet sich auf dem Rückzug. Stattdessen gewinnen Individualarbeitsverträge sowie konkurrierende und berufsständische Kollektivverträge an Bedeutung. Politik und Rechtsprechung...