What is the “right” geographic definition of relevant markets? We study how unexpected and exogenous increases in excise duties in petroleum products were passed-through to retail prices in the Athens region and examine how the degree of the pass-through varies across different geographic relevant markets. Using various definitions of the relevant geographic market, we find that the most...
Antibiotics are effective in treating bacterial infections. However, the excessive usage of antibiotics leads to the development of antibiotic resistant bacteria, which significantly reduces their effectiveness. Current strategies to address antibiotic resistance mainly target primary care physicians, who serve as the gatekeepers of antibiotic prescriptions in many countries. Therefore, it is...
This paper empirically analyses the impact of government ownership on competition in monopoly and duopoly markets. We use the European Airline Industry as a laboratory. In our empirical strategy we exploit two sources of exogenous variations that allow us to cleanly filter out the effect of government ownership on the likelihood of exit. First, we study government ownership that was triggered by a...
This paper relates incomplete price competition among real estate agents to inattentive home sellers. I exploit a recent legal reform in Germany which specifically aimed to increase price competition among real estate agents by raising the cost salience of sellers. I find that the reform backfired and real estate agents exploited the transition to increase their total commission rate by 0.3...
The European Emissions Trading System (EU-ETS) is the key policy tool of the EU to reduce GHG emissions. To prevent carbon leakage, most of the emission permits have been allocated for free in the industrial sector. A carbon border adjustment mechanism (CBAM) will be introduced end of 2023 as an alternative carbon leakage protection instrument. However, the CBAM will only gradually replace free...
Das Bundeskabinett hat heute eine Reform des Wettbewerbsrechts auf den Weg gebracht. Dabei soll das Bundeskartellamt deutlich mehr Befugnisse bekommen, um gegen überhöhte Preise vorzugehen. Wettbewerbsexperte Tomaso Duso, Leiter der Abteilung Unternehmen und Märkte im DIW Berlin und Mitglied der Monopolkommission, kommentiert dies wie folgt:
The main purpose of the project is to put together a comprehensive database including qualitative and quantitative information from past merger cases, which would enable DG Competition to produce statistical reports which could serve as an input to DG Competition's decision making practice in relation to EU merger control, both for operational and for policy purposes.
Jahrestagung 2023 des Industrieökonomischen Ausschusses im Verein für Socialpolitik