External Incentives to Diversify
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•Antitrust laws in 1960s and 1970s
discouraged mergers that created
increased market power (vertical or
horizontal integration.
•Mergers in the 1960s and 1970s thus
tended to be unrelated.
•Relaxation of antitrust enforcement
results in more and larger horizontal
mergers.
•Early 2000: antitrust concerns seem to
be emerging and mergers are now
more closely scrutinized.
Anti-trust
Legislation