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Is the Event Study Methodology Useful for Merger Analysis? A Comparison of Stock Market and Accounting Data

Author

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  • Tomaso Duso
  • Klaus Gugler
  • Burcin Yurtoglu
Abstract
We use a sample of 167 mergers during the period 1990-2002 involving 544 firms either as merging firms or competitors. We contrast a measure of the merger’s profitability based on event studies with one based on accounting data. We find positive and significant correlations between them when using a long window around the announcement date. ZUSAMMENFASSUNG - (Ist die "event study" Methodologie nützlich für die Analyse von Fusionen? Ein Vergleich von Aktienmärkte und Bilanzdaten) Wir analysieren eine Stichprobe von 167 Fusionen, die zwischen 1990 und 2002 stattgefunden haben und welche 544 Unternehmen -entweder als fusionierende Parteien oder als Wettbewerber- involviert haben. Wir vergleichen eine auf "event studies" basierende Rentabilitätsmaß der Fusion zu einer alternativen Maß, die durch Bilanzdaten konstruiert wurde. Wir finden, dass diese zwei maße positiv und signifikant korrelieren besonders wenn wir ein langes Fenster um die Fusionsankündigung in dem "event study" benutzen.

Suggested Citation

  • Tomaso Duso & Klaus Gugler & Burcin Yurtoglu, 2006. "Is the Event Study Methodology Useful for Merger Analysis? A Comparison of Stock Market and Accounting Data," CIG Working Papers SP II 2006-19, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
    • Handle: RePEc:wzb:wzebiv:spii2006-19
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    References listed on IDEAS

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    More about this item

    Keywords

    Mergers; Merger Control; Event Studies; Ex-post Evaluation;
    All these keywords.

    JEL classification:

    • L4 - Industrial Organization - - Antitrust Issues and Policies
    • K21 - Law and Economics - - Regulation and Business Law - - - Antitrust Law
    • G34 - Financial Economics - - Corporate Finance and Governance - - - Mergers; Acquisitions; Restructuring; Corporate Governance

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