[mcguire]

The "Hypothetical Monopolist Test":

"[T]he question posed is whether a hypothetical monopolist can profitably impose a small but significant and non-transitory increase in price in the product market as defined. If the answer to the question posed is yes, and the price increase would be profitable for the hypothetical monopolist, then the market is correctly defined, and from here the analysis could go forward to determining whether antitrust laws are being violated if the company at issue has too much market power." (https://www.law.cornell.edu/wex/hypothetical_monopolist_test)