Bei der Besteuerung nicht oder nur begrenzt handelbarer Dienstleistungen (wie z.B. lokale Postdienstleistungen) entfällt der Anpassungsdruck des internationalen Steuerwettbewerbs weitgehend, sodass etwaige Wettbewerbsverzerrungen insbesondere zwischen verschiedenen inländischen...

This paper studies competition in the German market for mobile telecommunications, motivated by recent suggestions that T-Mobile and Vodafone possess a position of collective dominance. Allegedly, their position of joint dominance is secured through a combination of first-mover advantages and...

This paper explores the effects that collusion can have in newspaper markets where firms compete for advertising as well as for readership. We compare three modes of competition: i) competition in the advertising and the reader market, ii) semi-collusion over advertising (with competition in the...

This paper summarizes the peculiarities of online markets and discusses recent antitrust cases related to online markets. Following a brief description of the online markets' characteristics and potential tendencies for concentration the paper first discusses the antitrust allegations and...

This note contains an empirical analysis of the decision of German‐speaking business scholars to boycott and opt out of the best known research ranking of business scholars, initiated and published by Germany's largest business daily, Handelsblatt. Our analysis indicates that scientists who...

Während die Forschungs- und insbesondere die wissenschaftliche Publikationstätigkeit von Ökonomen Gegenstand zahlreicher systematischer Untersuchungen und Vergleiche ist, besteht zur Politikberatungstätigkeit häufig nur anekdotische Evidenz. Das ist nicht unproblematisch, denn es ist...

This is paper analyses the interrelationship between perceived journal relevance and reputation. Based on a survey of 705 members of the German Economic Association, we find a strong interrelationship between journal reputation and relevance where a journal's perceived relevance has a stronger...

We analyze the behavior of 577 economics and law students in a simple binary trust experiment. While economists are both significantly less trusting and less trustworthy than law students, this difference is largely due to differences between female law and economics students. While female law...

Das vorliegende Papier zeigt, dass die seit Jahrzehnten andauernde Klagen wissenschaftlich tätiger Ökonomen, dass Öffentlichkeit und Politik nicht genug auf Ergebnisse der ökonomischen Forschung hören, zumindest für Deutschland im Quervergleich zu anderen Wissenschaften in Bezug auf das...