Not really. McDonalds can't charge a price that is much higher than local companies (i.e. companies that are both based in and operate in e.g. the UK). If they

Not really. McDonalds can't charge a price that is much higher than local companies (i.e. companies that are both based in and operate in e.g. the UK). If they both operate with equivalent efficiency, they should both have the same profit margins. The difference is then only the fact that McDonald's shareholders are not charged for the tax on corporate profits, while the local company's shareholders are.