Relevant geographic market definition is a question of fact, not law

Evidence

It has been recognized that in [Sherman Act] § 2 cases identification of the relevant geographic market is a matter of analyzing competition. “The geographic market encompasses the area in which the defendant effectively competes with other … businesses for the distribution of the relevant product.” It is “defined in terms of where buyers can turn for alternative sources of supply.” The definition of the relevant geographic market, therefore, is a question of fact to be determined in the context of each case in acknowledgment of the commercial realties of the industry under consideration…. — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 1236

Categorization

• DEFINE: Defines relevant geographic market in Sherman Act § 2 cases as the area where buyers can turn for alternative sources of supply.
• corroborated: 2 independent passages support this claim — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 1236
• XREF: connects to: Geographic separation does not prove noninfringing status under patent law — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 860