Final answer:
A monopoly is when a single entity has exclusive control over the supply of a product or service, eliminating competition.
Explanation:
Monopoly is the type of economy where a single entity, such as a business or government, is the sole provider of a particular product or service without any close substitutes. In this scenario, the Harrison family, as the only business allowed to supply consumers with leather shoes in their country, represents a monopoly market structure, where there is no competition.
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