The Berlin IO Day is a one-day workshop sponsored by the Berlin Centre for Consumer Policies (BCCP) and supported by the Berlin's leading academic institutions, including DIW Berlin, ESMT Berlin, Humboldt-Universität zu Berlin, and Technische Universität Berlin. The aim is to create an international forum for high quality research in Industrial Organization in the heart of Berlin, one of...
Tomaso Duso erklärt, was wirtschaftlicher Wettbewerb eigentlich ist, was die Vorteile von Wettbewerb sind und welche Regeln es gibt. Prof. Dr. Tomaso Duso leitet die Abteilung Unternehmen und Märkte am Deutschen Institut für Wirtschaftsforschung (DIW Berlin). Er ist Professor für empirische Industrieökonomie an der Technischen Universität Berlin. Er berät unter anderem die Europäische...
How does online advertising affect consumer behaviour, product pricing and competition? To analyse this, I develop a theory of digital markets where an intermediary provides a platform for firms to advertise their product and where consumers need to engage in costly search if they want to learn about the product characteristics. First, I show that when prices are observable...
Die Steuersenkung auf Benzin und Diesel zum 1. Juni hat die Preise an den Tankstellen nur kurzzeitig senken können. Tomaso Duso, Wettbewerbsexperte und Leiter der Abteilung Unternehmen und Märkte im DIW Berlin, kommentiert die Gründe des verpufften Tankrabatts und empfiehlt zielgerichtetere Maßnahmen der Politik:
Using data on 4.1 million apps at the Google Play Store from 2016 to 2019, we document that GDPR induced the exit of about a third of available apps; and in the quarters following implementation, entry of new apps fell by half. We estimate a structural model of demand and entry in the app market. Comparing long-run equilibria with and without GDPR, we find that GDPR reduces consumer surplus and...
This paper sheds new light on the role of communication for cartel formation. Using machine learning to evaluate free-form chat communication among firms in a laboratory experiment, we identify typical communication patterns for both explicit cartel formation and indirect attempts to collude tacitly. We document that firms are less likely to communicate explicitly about price fixing and more likely ...
We provide a description of ownership patterns in the top 25 European banks for the period 2003–2015, where we especially focus on the global financial crisis. Investment managers, such as Blackrock, are dominant in terms of number of blockholdings in different banks, maintaining fairly stable “common ownership” networks throughout our sample. However, the financial crisis led to capital injections ...