Mergers and the Performance of the Acquiring Firm

Do mergers provide real benefits to acquiring firms?If not, as empirical studies completed mostly in the field of finance conclude, then why do firms continue to merge?If mergers do provide real benefits, as the literature of industrial organizations and strategic management suggest, then why haven't the empirical studies found any evidence of real benefits?By integrating the conclusions on mergers from the above three disciplines, these questions are addressed.