Policy Output
Reports › CompNet’s flagship and special reports provide in-depth, data-driven analysis on productivity, competitiveness, and related economic trends, using the latest CompNet…
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10th Vintage
The CompNet 10th Vintage Dataset 10th Vintage dataset is now available! The CompNet dataset provides a comprehensive set of micro-aggregated indicators, specifically designed to…
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Supervision and Research
Supervision and Research Research A dissertation is, of course, first and foremost an individual endeavour which, in addition to the purely intellectual demands, also requires a…
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Lecturers
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,
No. 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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Centre for Evidence-based Policy Advice
Centre for Evidence-based Policy Advice (IWH-CEP) The Centre for Evidence-based Policy Advice (IWH-CEP) of the IWH was founded in 2014. It is a platform that bundles and…
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Centre for Business and Productivity Dynamics
Centre for Business and Productivity Dynamics (IWH-CBPD) The Centre for Business and Productivity Dynamics (CBPD) was founded in January 2025 and works with policy and research…
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Job Market Candidates
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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14 Euro Mindestlohn: Rund ein Fünftel der Betriebe erwartet einen Beschäftigungsrückgang
Erik-Benjamin Börschlein, André Diegmann
IAB Forum,
October
2024
Abstract
Auf die Erhöhung des Mindestlohns auf 12 Euro im Oktober 2022 haben rund 30 Prozent der Betriebe in Deutschland mit Lohnerhöhungen reagiert. Eine weitere Anhebung des Mindestlohns auf 14 Euro könnte mehr als jeden zweiten Betrieb betreffen. Etwa ein Drittel der Betriebe, die direkt davon betroffen wären, geht davon aus, innerhalb der kommenden zwölf Monate Beschäftigung abbauen zu müssen.
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IWH-DPE in a Nutshell
IWH-DPE in a Nutshell Job Market Candidates Candidates from all four IWH departments will enter the academic job market in 2025/2026. Visit our job market page and learn more…
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