Securities Law Commons^™

Why Do Corporations Merge And Why Should Law Care?, Chris Sagers

University of Michigan Journal of Law Reform

Mergers and acquisitions are extraordinarily prevalent in the United States, generating massive expenditures every year. However, a serious empirical puzzle lies at the heart of all that activity. That empirical phenomenon’s most remarkable feature by far is that even though it is well established in an extensive literature and implies far-reaching policy consequences, American law ignores it entirely.

Generations of researchers have failed to find evidence that merger and acquisition activity generates any lasting benefits for the combining firms’ owners or anyone else. No one seriously doubts that efficiencies of scale or technological integration are real or that acquisitions sometimes …