Ohio v. American Express Co.
Citation
585 U.S. 529 (2018)
Facts
Stub — to be completed.
Issue
Stub — to be completed.
Holding
Stub — to be completed.
Rule
Two-sided transaction platforms must be analyzed as a whole under the rule of reason; harm to one side cannot establish anticompetitive effect without accounting for benefits on the other.
Significance
Established that two-sided markets require a unified market definition for antitrust analysis.