In section 3, four different types of industries are discussed: perfect competition, monopolies, monopolistic competition, and oligopolies. Please choose an example of a firm in each of the four categories of which you have personally been a customer. Explain how each firm fits into the definition of perfect competition, monopoly, monopolistic competition and oligopoly, and how you believe the type of industry affects the pricing of the products they sell.

Finally,for each type of industry, discuss whether or not, in your opinion, if/how government regulation or government ownership would be beneficial/detrimental in all of the four industries you described.