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Diskussionspapiere 1982 / 2021

In a World with Many Targets, One-Dimensional Target Indicators Will Always Be Bypassed

It is striking that economists in particular firmly believe in the benefits of rule-binding, even though this belief runs counter to the standard assumption of economic theory that we humans are self-interested and therefore extremely resourceful when it comes to circumventing inconvenient government regulations, e.g. taxes. In Public Choice Theory, politicians are even assumed to have nothing but ...

2021| Gert G. Wagner
Externe referierte Aufsätze

The Effect of Mergers on Variety in Grocery Retailing

We study a merger between two Dutch supermarket chains to assess its effect on the depth as well as composition of assortment. We adopt a difference-in-differences strategy that exploits local variation in pre-merger competitive conditions and thus in the merger outcomes. To define our control group, we account for selection on observables through a matching procedure. We observe that, after the merger, ...

In: International Journal of Industrial Organization 79 (2021), 102789, 19 S. | Elena Argentesi, Paolo Buccirossi, Roberto Cervone, Tomaso Duso, Allessia Marrazzo
Externe referierte Aufsätze

The Role of Budget Constraints in Sequential Elimination Tournaments

We study how budget constraints affect effort provision in sequential elimination tournaments. Our main result is that the introduction of budget constraints has two opposing effects on the initial effort of the unconstrained contestants, and leads to a non-monotonicity of this effort. This implies that if the budget asymmetry is not too large, total first-stage effort from unconstrained contestants ...

In: The Scandinavian Journal of Economics 123 (2021), 4, S. 1059-1087 | Malin Arve, Olga Chiappinelli
Brown Bag Seminar Industrial Economics

Antitrust Policy and Innovation

Innovation has recently come to the attention of Antitrust Authorities, even though the effect of mergers on innovation is still hotly debated. I study how the activity of Antitrust Authorities impacts future innovation of merging firms. Exploiting a change in notification rules I build an event study comparing mergers notified to the authorities with non-notified ones. I develop a new methodology...

03.12.2021| Giovanni Morzenti, Bocconi University, Milan
Externe referierte Aufsätze

Coupled Lotteries - a New Method to Analyze Inequality Aversion

We develop and implement a new measure for inequality aversion: two peers are endowed with identical binary lotteries and the only choice they make is whether they want to play out the lotteries independently or with perfect positive correlation (coupling). Coupling has the core reason to prevent outcome inequality. We implement the method in a survey in rural Thailand as well as in a supplemental ...

In: Journal of Economic Behavior & Organization 191 (2021), S. 236–256 | Melanie Koch, Lukas Menkhoff, Ulrich Schmidt
Diskussionspapiere 1979 / 2021

Assessing EU Merger Control through Compensating Efficiencies

Worldwide, the overwhelming majority of large horizontal mergers are cleared by antitrust authorities unconditionally. The presumption seems to be that efficiencies from these mergers are sizeable. We calculate the compensating efficiencies that would prevent a merger from harming consumers for 1,014 mergers affecting 12,325 antitrust markets scrutinized by the European Commission between 1990 and ...

2021| Pauline Affeldt, Tomaso Duso, Klaus Gugler, Joanna Piechucka
Externe referierte Aufsätze

Common Ownership Patterns in the European Banking Sector: The Impact of the Financial Crisis

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 ...

In: Journal of Competition Law & Economics (2021), im Ersch. [online first: 2021-10-08] | Albert Banal-Estañol, Nuria Boot, Jo Seldeslachts
DIW Weekly Report 33 / 2021

Hospital Mergers Can Impact the Offer of Health Care Services

In the last decades, many European hospital markets witnessed a wave of mergers leading to increased levels of market concentration. The effects of hospital mergers and the effectiveness of competition enforcement have been discussed by politicians but understudied by academics. This report studies how hospital mergers impact hospital service provision by focusing on the French hospital industry from ...

2021| Daniel Herrera-Araujo, Joanna Piechucka
Externe referierte Aufsätze

Merger Efficiency Gains: Evidence from a Large Transport Merger in France

Many industries are seeing an increase in concentration, leading to a discussion on the effectiveness of horizontal merger enforcement. The policy debate shows that one of the key arguments put forward when supporting potential mergers is the possibility of realization of merger efficiency gains, specifically in the transport industry. Yet, there exists little empirical evidence on the actual effects ...

In: International Journal of Industrial Organization 77 (2021), 102760, 22 S. | Ariane Charpin, Joanna Piechucka

Essays on the Economics of the Pharmaceutical Industry

The pharmaceutical industry makes a significant contribution to global health and economic welfare through the development and production of innovative medical treatments. This dissertation consists of four essays which advance our understanding of the pharmaceutical industry and how to effectively regulate this sector. Each chapter aims to provide new insights, which are relevant for policymakers, ...

Leuven: Katholieke Universiteit, 2021, XII, 206 S. | Melissa Newham
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