Price levels and movements on gasoline and diesel markets are heavily debated among consumers, policy-makers, and competition authorities alike. In this paper, we empirically investigate how and why price levels differ across gasoline stations in Germany, using eight months of data from a novel...

Der Beitrag beinhaltet neben einer theoretisch-konzeptionellen Analyse der Frage, ob wirtschaftsplitische Beratung und Spitzenforschung, in einem substitutiven oder komplementären Verhältnis stehen, auch eine empirische Analyse. Dazu werden zum einen empirische Fakten über das...

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...

We use a novel data set with exact price quotes from virtually all German gasoline stations to empirically investigate how a temporary variance in local market structure induced by restricted opening hours of specific players affects price competition. We find that, during their hours of...

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....

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...

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...