This is an online seminar using Webex. You will receive the login data with the invitation to the talk. Abstract: In the last ten years, Google, Apple, Facebook, Amazon, and Microsoft (GAFAM) acquired more than 400 companies, predominantly in the technological sector. Competition authorities did not scrutinize most of these transactions, as they did not reach the traditional thresholds,...
This is an online seminar using Webex. You will receive the login data with the invitation to the talk. Abstract: This paper analyzes the relationship between common ownership – when two firms are partially held by the same investor – and markups. Combining firm-level financial data from Europe with ownership data of publicly listed firms, we structurally estimate production...
Abstract: We study competition between Airbnb and hotel accommodations in Paris in 2017 to assess the welfare implications of Airbnb’s presence on hotels and travelers. The existing literature on the subject exclusively uses across city variation in Airbnb diffusion. Consequently, it does not take into account that the location of an accommodation within a city might be an important...
Abstract: An increasing body of empirical evidence has documented trends to risen concentration, profits, markups, and market power in many industries across the world since the 1980s. Several factors – such as globalisation, digitisation, the increased role of intangible assets and sunk costs, as well as M&A activity and the (under)enforcement of merger control– have been...
Abstract: Antibiotic misuse due to prescribing under diagnostic uncertainty is a leading driver of antibiotic resistance. We investigate the magnitude and mechanisms by which machine learning predictions can enable policies that reduce antibiotic misuse. Building on predictions from administrative data on urinary tract infections in Denmark, we evaluate counterfactual policies that replace...
Gemäß dem Urteil des Europäischen Gerichtshofs (EuGH) vom 19. Oktober 2016 ist das deutsche Arzneimittelpreisrecht nicht auf Versandapotheken mit Sitz in einem anderen Mitgliedstaat der Europäischen Union anwendbar. Infolgedessen können diese bei der Abgabe von verschreibungspflichtigen Arzneimitteln an Patientinnen und Patienten Boni und Rabatte gewähren. Vor...
Bauwirtschaft wird in diesem und im nächsten Jahr nominal um mehr als sechs Prozent, real um rund drei Prozent zulegen – Eckpfeiler des Aufwärtstrends bleibt der Wohnungsbau, 2019 hat vor allem der Neubau kräftig zugenommen – Politik sollte langfristige Investitionsanreize setzen und Genehmigungsverfahren straffen Die Bauwirtschaft ist und bleibt eine Stütze der Konjunktur ...
The superstar firms model provides a compelling explanation for two simultaneously occurring phenomena: the rise of concentration in industries and the fall of labor shares. Our empirical analysis confirms two of the underlying assumptions of the model: the market share increases and the labor share decreases with increasing firm-level total factor productivity, providing support for the superstar ...