TY - BOOK AU - Seldeslachts,Jo AU - Clougherty, Joseph A. AU - Barros, Pedro Pita TI - Settle for Now but Block for Tomorrow: the Deterrence Effects of Merger Policy Tools SN - 00222186 AV - HB73 JOU PY - 2009/// CY - Chicago PB - University of Chicago Press KW - Antitrust KW - Antitrust policy KW - Behavior deterrence KW - Estimation methods KW - Instrumental variables estimation KW - Insurance settlements KW - Jurisdiction KW - Linear regression KW - Stock markets N2 - Antitrust policy involves not just the regulation of anticompetitive behavior but also an important deterrence effect. Neither scholars nor policy makers have fully researched the deterrence effects of merger policy tools because they have been unable to empirically measure these effects. We consider the ability of different antitrust actions—blocked mergers, negotiated settlements, and monitorings—to deter firms from engaging in mergers. We use cross‐jurisdiction/pantime data on merger policy to empirically estimate the impact of antitrust actions on future merger frequencies. We find that blocked mergers lead to decreased merger notifications in subsequent periods and that negotiated settlements weakly increase future merger notifications; in other words, blocked mergers involve a deterrence effect, but negotiated settlements do not UR - https://doi.org/10.1086/596038 ER -