> Why isn't iOS devices a market? Same reason "McDonalds hamburgers" aren't a market. They're just a branded product within a larger "smartphones" market. > H

> Why isn't iOS devices a market? Same reason "McDonalds hamburgers" aren't a market. They're just a branded product within a larger "smartphones" market. > How do you define market, then, if that's not a market? Same way the FTC does: > all goods or services that buyers view as close substitutes https://www.ftc.gov/advice-guidance/competition-guidance/guide-antitrust-laws/mergers/markets https://www.ftc.gov/advice-guidance/competition-guidance/gui... An Android is a close substitute for an iPhone, just like a Ford is a close substitute for a Toyota. People switch between them all the time.