(Reiterated for clear comprehension)
Monopoly- market structure with a single seller who produces a product with no close substitutes ("price makers")
Perfect Competition- market structure with many sellers who produce identical products ("price takers")
Oligopoly- market structure with many sellers who produce differentiated products (such as food, hairdressers, and movie theaters)
Monopoly- market structure with a single seller who produces a product with no close substitutes ("price makers")