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Use Case Product Markets And The Spirit Of Reasonable Interchangeability, Denis Hurley

Cornell Journal of Law and Public Policy

This Note posits that a single product with multiple, non-reasonably interchangeable use cases can function like multiple products, exchanged in multiple product markets, for purposes of assessing antitrust liability.

In antitrust law, individual product markets are defined by the principle of reasonable interchangeability (or substitutability). Where a single product has multiple uses that are not reasonably interchangeable, the use cases should define the product market. The lay concept of what constitutes a single product is not applicable to antitrust law when a single product has multiple, non-reasonably interchangeable use cases. As a result, antitrust liability should attach where a seller …