Chapter 46
Sherman Act if their anticompetitive effects outweigh their procompetitive effects.
Per se rule—A rule that is applicable to those restraints of trade considered inherently
anticompetitive. Once this determination is made, the court will not permit any defenses
or justifications to save it.
Predatory pricing—Pricing below average or marginal cost.
this perception can be enjoined under Section 7.
Potential reciprocity theory—A theory that says if Company A, which supplies materials
to Company B, merges with Company C (which in turn gets its supplies from Company
B), the newly merged company can coerce Company B into dealing exclusively with it.
Price-fixing—Occurs where competitors in the same line of business agree to set the
the offenders.
Probability of a substantial lessening of competition—If there is a probability that a
merger will substantially lessen competition or create a monopoly, the court may prevent
the merger under Section 7 of the Clayton Act.
Product market extension merger—A merger between sellers of similar products.
Relevant geographical market—A relevant market that is defined as the area in which the
defendant has monopoly power.
Relevant product or service market—A relevant market that includes substitute products
or services that are reasonably interchangeable with the defendant’s products or services.
Resale price maintenance—A per se violation of Section 1 of the Sherman Act; occurs
when a party at one level of distribution enters into an agreement with a party at another
level to adhere to a price schedule that either sets or stabilizes prices.
Robinson-Patman Act.
Rule of reason—A rule that holds that only unreasonable restraints of trade violate
Section 1 of the Sherman Act. The court must examine the pro- and anticompetitive
effects of the challenged restraint.