By Gregory J. Werden & Luke M. Froeb

European enforcers have brought high-profile antitrust cases against the tech giants, and both activists and members of Congress are calling for action in the United States. This short note identifies ten hard-wired differences between the European and American enforcement regimes that make very it difficult for the U.S. antitrust enforcement agencies to emulate their European counterparts. This note also identifies a few other points of contrast between Europe and the United States that affect antitrust enforcement against tech giants going forward.