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...

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...

Inhalt: VORTRÄGE UND ZUSAMMENFASSUNG (Haucap, Justus: Warum erlahmt die Innovationsdynamik in Deutschland? Was ist zu tun? - Schubert, Sascha: Disruptive Geschäftsmodelle und Unternehmensgründungen: Wie viel Nachholbedarf hat Deutschland? - Hoyer, Werner: Eine neue Innovationsagenda für...

This paper provides an empirical analysis how tariff diversity aspects fixed-line broad-band uptake, utilizing a new data set with 1497 fixed-line and 2158 mobile broad-band tariffs from 91 countries across the globe. An instrumental variable approach is applied to estimate demand, controlling...

This paper provides an empirical analysis how tariff diversity affects broadband uptake, utilizing a new data set with 1497 fixed-line and 2158 mobile broadband tariffs from 91 countries across the globe. An instrumental variable approach is applied to estimate the demand for fixed broadband...

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

Frontmatter -- Inhalt -- Die Ökonomik von Sport, Entertainment und Medien – ein Thema für das Forschungsseminar Radein? -- Teil I: Sportmärkte -- Zur Vergabe der Medienrechte in der Fußball-Bundesliga -- Ökonomische Fragen der Talentförderung im Fußball: Theorie, Praxis und empirische...