The Sherman Act does not prohibit the Amex contract with the merchants because Ohio et al. have not shown anticompetitive effects on cardholders.
The Chinese government filed a brief in a case to help the court interpret Chinese law. Was the court supposed to follow that interpretation blindly or make its own judgment?
Salt River, an electricity supplier, was denied immunity from antitrust liability. Can Salt River appeal now, or must it wait until the case is over?
Can the states prove Amex’s contract with merchants is illegal without proving negative effects on cardholders?