Working Paper No. 542

Why Event Studies Do Not Detect Anti-Competitive Mergers

Published: December 14, 2000Pages: 8Keywords: Mergers & Acquisitions; Event Studies; Antitrust; Coalition FormationJEL-codes: G14; G34; L12; L41

Why Event Studies Do Not Detect Anti-Competitive Mergers Sven-Olof Fridolfsson and Johan Stennek


Anticompetitive mergers increase competitors' profits, since they reduce competition. Using a model of endogenous mergers, we show that such mergers nevertheless may reduce the competitors' share-prices. Thus, event-studies can not detect anti-competitive mergers.

Integrating Immigrants into the Nordic Labour Markets

An Overall Perspective

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Denmark, Finland, Norway and Sweden face similar problems of integrating large groups of immigrants, especially low-educated ones from outside the EU, into their labour markets. In this volume, edited by Lars Calmfors, IFN, and Nora Sánchez Gassen in cooperation with researchers from across the Nordic Region analyse how labour market integration of immigrants can be promoted. 

About the book

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To present ongoing research informal brown-bag seminars are held on Mondays at 11:30 am. This is an opportunity for IFN researchers to test ideas and results.

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In addition, IFN organizes seminars open to the public. Topics for these are derived from the IFN research.

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