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Open Calls for PhD Intake We encourage outstanding students with a Master's degree in economics or related subjects such as mathematics, statistics, business administration,…
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Lecturers Lars Börner Professor of Economics at Martin Luther University Halle-Wittenberg. Website Kamila Cygan-Rehm Professor of Quantitative Methods, esp. Econometrics at the…
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The Effects of Antitrust Laws on Horizontal Mergers: International Evidence
Chune Young Chung, Iftekhar Hasan, JiHoon Hwang, Incheol Kim
Journal of Financial and Quantitative Analysis,
Vol. 59 (7),
2024
Abstract
This study examines how antitrust law adoptions affect horizontal merger and acquisition (M&A) outcomes. Using the staggered introduction of competition laws in 20 countries, we find antitrust regulation decreases acquirers’ five-day cumulative abnormal returns surrounding horizontal merger announcements. A decrease in deal value, target book assets, and industry peers' announcement returns are consistent with the market power hypothesis. Exploiting antitrust law adoptions addresses a downward bias to an estimated effect of antitrust enforcement (Baker (2003)). The potential bias from heterogeneous treatment effects does not nullify our results. Overall, antitrust policies seem to deter post-merger monopolistic gains, potentially improving customer welfare.
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Job Market Candidates Marius Fourné Marius Fourné is a PhD candidate in Economics at the Halle Institute for Economic Research (IWH) and Martin Luther University of…
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IT Information The respective contact person is indicated in brackets. Datastream (Jan Neumann) Privacy Rules in Zoom (in German) (Robert Cremer) MacOS Printing (Jan Neumann) Scan…
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Teaching Within the framework of its cooperations with both German and foreign universities IWH researchers are actively committed to teaching by offering academic courses. These…
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Frequently Asked Questions Answers to the most frequently asked questions about doctoral studies at IWH. What are the IWH's main areas of research? Researchers at IWH are leading…
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Department Profiles
Research Profiles of the IWH Departments All doctoral students are allocated to one of the four research departments (Financial Markets – Laws, Regulations and Factor Markets –…
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Alumni IWH provides guidance and support in job placement after graduation, including letters of recommendation and career advice. Graduates have found placements in academia…
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Placement News
Placement News IWH-DPE graduate placements 2024: St Andrews and the Bank of England Eleonora Sfrappini from the Financial Markets department and Tommaso Bighelli from the…
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