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95 results, from 41
Diskussionspapiere 1930 / 2021

Market Concentration in Europe: Evidence from Antitrust Markets

An increasing body of empirical evidence is documenting trends toward rising concentration, profits, and markups in many industries around the world since the 1980s. Two major criticisms of these studies is that concentration and market shares are poorly measured at the national industry level while firm level revenues are a poor indicator of product sales. We use a novel database that identifies over ...

2021| Pauline Affeldt, Tomaso Duso, Klaus Gugler, Joanna Piechucka
Diskussionspapiere 1890 / 2020

Airbnb and Rents: Evidence from Berlin

Cities worldwide have regulated peer-to-peer short-term rental platforms claiming that those platforms remove apartments from the long-term housing market, causing an in- crease in rents. Establishing and quantifying such a causal link is, however, challenging. We investigate two policy changes in Berlin to first assess how effective they were in regulating Airbnb, the largest online peer-to-peer short-term ...

2020| Tomaso Duso, Claus Michelsen, Maximilian Schäfer, Kevin Ducbao Tran
Diskussionspapiere 1887 / 2020

R&D Spillovers throught RJV Cooperation

We investigate the dimensions through which R&D spillovers are propagated across firms via cooperation through Research Joint Ventures (RJVs). We build on the framework developed by Bloom et al. (2013) which considers the opposing effects of technology spillovers and product market rivalry, and extend it to account for RJVs. Our main findings are that the adverse effects of product market rivalry are ...

2020| Albert Banal-Estañol, Tomaso Duso, Jo Seldeslachts, Florian Szücs
Diskussionspapiere 1836 / 2019

Merger Policy in Digital Markets: An Ex-Post Assessment

This paper presents a broad retrospective evaluation of mergers and merger decisions in the digital sector. We first discuss the most crucial features of digital markets such as network effects, multi-sidedness, big data, and rapid innovation that create important challenges for competition policy. We show that these features have been key determinants of the theories of harm in major merger cases ...

2019| Elena Argentesi, Paolo Buccirossi, Emilio Calvano, Tomaso Duso, Alessia Marrazzo, Salvatore Nava
Diskussionspapiere 1797 / 2019

25 Years of European Merger Control

We study the evolution of the EC’s merger decision procedure over the first 25 years of European competition policy. Using a novel dataset constructed at the level of the relevant markets and containing all merger cases over the 1990-2014 period, we evaluate how consistently arguments related to structural market parameters were applied over time. Using non-parametric machine learning techniques, we ...

2019| Pauline Affeldt, Tomaso Duso, Florian Szücs
Diskussionspapiere 1734 / 2018

Price or Variety? An Evaluation of Mergers Effects in Grocery Retailing

Assortment decisions are key strategic instruments for firms responding to local market conditions. We assess this claim by studying the effect of a national merger between two large Dutch supermarket chains on prices and on the depth as well as composition of assortment. We adopt a difference-in-differences strategy that exploits local variation in the merger’s effects, controlling for selection on ...

2018| Elena Argentesi, Paolo Buccirossi, Roberto Cervone, Tomaso Duso, Alessia Marrazzo
Diskussionspapiere 1685 / 2017

Abuse of Dominance and Antitrust Enforcement in the German Electricity Market

In 2008, the European Commission investigated E.ON, a large and vertically integrated electricity company, for the alleged abuse of a joint dominant position by strategically withholding generation capacity. The case was settled after E.ON agreed to divest 5,000 MW generation capacity as well as its extra-high voltage network. We analyze the effect of these divestitures on German wholesale electricity ...

2017| Tomaso Duso, Florian Szücs, Veit Böckers
Diskussionspapiere 1674 / 2017

The Impact of Competition Policy Enforcement on the Functioning of EU Energy Markets

We investigate the impact of competition policy enforcement on the functioning of European energy markets, and how sectoral regulation influences these outcomes. For this purpose, we compile a new dataset on the European Commission’s (EC) and EU member states’ competition policy decisions, and combine it with firm- and sector-level data. We find that EC merger policy has a positive and robust impact ...

2017| Tomaso Duso, Jo Seldeslachts, Florian Szücs
Diskussionspapiere 1614 / 2016

Market Power and Heterogeneous Pass-through in German Electricity Retail

We analyze the pass-through of cost changes to retail tariffs in the German electricity market over the 2007 to 2014 period. We find an average pass-through rate of around 60%, which significantly varies with demand factors: while the pass-through rate to baseline tariffs, where firms have higher market power, is only 50%, it increases to 70% in the competitive segment of the market. Although the pass-through ...

2016| Tomaso Duso, Florian Szücs
Diskussionspapiere 1523 / 2015

Effective European Antitrust: Does EC Merger Policy Generate Deterrence

We estimate the deterrence effects of European Commission (EC) merger policy instruments over the 1990-2009 period. Our empirical results suggest that phase-1 remedies uniquely generate robust deterrence as – unlike phase-1 withdrawals, phase-2 remedies, and preventions – phase-1 remedies lead to fewer merger notifications in subsequent years. Furthermore, the deterrence effects of phase-1 remedies ...

2015| Joseph Clougherty, Tomaso Duso, Miyu Lee, Jo Seldeslachts
95 results, from 41
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