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209 Ergebnisse, ab 141
  • 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 1738 / 2018

    Common Ownership and Market Entry: Evidence from Pharmaceutical Industry

    Common ownership - where two firms are at least partially owned by the same investor - and its impact on product market outcomes has recently drawn a lot of attention from scholars and practitioners alike. Theoretical and empirical researchsuggests that common ownership can lead to higher prices. This paper focuses on implications for market entry. To estimate the effect of common ownership on entry ...

    2018| Melissa Newham, Jo Seldeslachts, Albert Banal-Estanol
  • DIW Berlin - Politikberatung kompakt 127 / 2018

    Ökonomische Indikatoren des Energiesystems: Methode, Abgrenzung und Ergebnisse für den Zeitraum 2000-2016; Studie im Auftrag des Bundesministeriums für Wirtschaft und Energie

    2018| Marlene O'Sullivan, Dietmar Edler, Ulrike Lehr
  • Statement

    Ein schlechter Tag für den Wettbewerb in der Luft

    Den Verkauf großer Teile der insolventen Airline Air Berlin an Lufthansa kommentiert Tomaso Duso, Leiter der Abteilung Unternehmen und Märkte am DIW Berlin, wie folgt:

    12.10.2017| Tomaso Duso
  • Konferenz

    BCCP Conference and Policy Forum 2017

    The tremendous growth of digital transactions – mainly through online platforms – has profoundly affected the way we interact and has opened vast opportunities to improve our lives. The disruptive impact of this process is driven by one core feature: its ability to reduce inefficiencies. Consumers have benefited from an unprecedented proliferation of new services and products that...

    01.06.2017
  • Diskussionspapiere 1680 / 2017

    Consumer Stockpiling and Sales Promotions

    In retailing markets of storable goods, consumer behavior is typically characterized by stockpiling. While existing research has developed rich models for such strategic consumer behavior, little is known about how sellers should ideally respond to it. In this paper, we provide insights into how frequency and depth of promotions affect consumer purchases and seller revenues in the long run. We show ...

    2017| Anna Lu
  • Diskussionspapiere 1681 / 2017

    Inference of Consumer Consideration Sets

    When consumers face a large number of alternatives, they tend to simplify the decision problem by reducing the number of available alternatives to a subset of relevant alternatives, i.e. a consideration set. Since consideration sets are typically unobserved, most studies in the demand literature have to assume a consideration model. If these consideration models are misspecified, the demand estimates ...

    2017| Anna Lu
  • 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 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
  • Economic Bulletin

    Hospital-level policy can affect physician behavior and reduce C-section rates

    The past few decades have seen a considerable increase in caesarean section rates, which have now reached unprecedented levels. Concerns have been raised about the possibility of medically unnecessary procedures having negative consequences for mothers and infants (WHO, 2015). The aim of this report is to show that a properly implemented hospital-level policy may be a powerful tool for reducing the ...

    26.10.2016| Sofia Amaral-Garcia, Jana Friedrichsen
209 Ergebnisse, ab 141
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