Answer:
Monopoly
Oligopoly
monopolistic competition
Perfect competition
Step-by-step explanation:
A perfect competition is characterized by many buyers and sellers of homogenous goods and services. Market prices are set by the forces of demand and supply. There are no barriers to entry or exit of firms into the industry.
A monopolistic competition is when there are many firms selling differentiated products in an industry. A monopolistic competition has characteristics of both a monopoly and a perfect competition. the demand curve is downward sloping. it sets the price for its goods and services.
examples of monopolistic competition are restaurants
A monopoly is when there is only one firm operating in an industry. there is usually high barriers to entry of firms. the demand curve is downward sloping. it sets the price for its goods and services.
An example of a monopoly is an utility company
An oligopoly is when there are few large firms operating in an industry. there is high barriers to entry and exit of firms