Pornsit JirapornPandej ChintrakarnPennsylvania State UniversityMahidol University2018-06-112018-06-112012-01-01European Journal of Scientific Research. Vol.80, No.2 (2012), 205-2121450202X1450216X2-s2.0-84864026974https://repository.li.mahidol.ac.th/handle/20.500.14594/13526We investigate the impact of regulation on anti-takeover defenses for a large sample of U.S firms. We document that financial firms deploy significantly fewer anti-takeover defense mechanisms than do industrial firms. On the contrary, utility firms employ just as many defense mechanisms as industrial firms. Although both financial and utility firms are regulated, it appears that the effects of their regulations on takeover defenses are dissimilar. © EuroJournals Publishing, Inc. 2012.Mahidol UniversityAgricultural and Biological SciencesComputer ScienceEarth and Planetary SciencesEngineeringMaterials ScienceMathematicsArticleSCOPUS