That's not what monopoly really means. Peter Thiel (for whom I have lots of criticism) makes these things really clear in the way he discusses them. You could open up a British Food restaurant somewhere and be the only one in town. That doesn't make you a monopoly because the actual market is for all types of dining. There's not specific British Food market that you've captured. When businesses want to taut their power and monopoly status (whether to delude themselves or to get investors or whatever), they will pretend that the market is as narrow as their particular product. When they want to convince regulators that they are just one in a competing market, they'll widen the market as much as possible…