S-WoPEc
 
Scandinavian Working Papers in Economics
HomeAboutSeriesSubject/JEL codesAdvanced Search
Research Institute of Industrial Economics (IFN) Working Paper Series

No 682:
Industry Concentration and Welfare - On the Use of Stock Market Evidence from Horizontal Mergers

Sven-Olof Fridolfsson () and Johan Stennek ()

Abstract: There is diverging empirical evidence on the competitive effects of horizontal mergers: consumer prices (and thus presumably competitors' profits) often rise while competitors' share prices fall. Our model of endogenous mergers provides a possible reconciliation. It is demonstrated that anticompetitive mergers may reduce competitors' share prices, if the merger announcement informs the market that the competitors' lost a race to buy the target. Also the use of "first rumor" as an event may create similar problems of interpretation. We also indicate how the event-study methodology may be adapted to identify competitive effects and thus, the welfare consequences for consumers.

Keywords: Mergers & Acquisitions; Event Studies; Antitrust; In-play; Coalition Formation; (follow links to similar papers)

JEL-Codes: G14; G34; L12; L41; (follow links to similar papers)

45 pages, December 6, 2006

Before downloading any of the electronic versions below you should read our statement on copyright.
Download GhostScript for viewing Postscript files and the Acrobat Reader for viewing and printing pdf files.

Full text versions of the paper:

wp682.pdf    PDF-file
Download Statistics

Questions (including download problems) about the papers in this series should be directed to Elisabeth Gustafsson ()
Report other problems with accessing this service to Sune Karlsson () or Helena Lundin ().

Programing by
Design by Joachim Ekebom

Handle: RePEc:hhs:iuiwop:0682 This page was generated on 2016-10-11 23:50:34