?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Ivaldi&rft.aufirst=Marc&rft.issue=n%C2%B09%2F10&rft.volume=23&rft.date=December+2005&rft.issn=0167-7187&rft.atitle=Quantifying+the+Effects+from+Horizontal+Mergers+in+European+Competition+Policy&rft.title=International+Journal+of+Industrial+Organization&rft.pages=669-691&rft.genre=article