Question

jack, jamie, ronnie, and stephan own the only computer software manufacturing companies in the country. when jack increases the price of his product and advertises extensively to promote it, the other three manufacturers immediately increase their prices and launch promotional strategies. what type of market structure do these four companies operate in? a. oligopoly b. monopolistic competition c. monopoly d. perfect competition e. natural monopoly

Explanation:

• Oligopoly: In an oligopoly, a small number of firms dominate the market. Firms are interdependent; when one firm changes its strategy (like price or promotion), others react. Here, four firms (Jack, Jamie, Ronnie, Stephan) are in the market, and when one (Jack) acts, others follow.
• Monopolistic competition: Has many firms, not a small number like four. Products are differentiated, but the key here is the small - firm number and interdependence.
• Monopoly: Only one firm. But there are four firms here.
• Perfect competition: Many firms, no firm can influence price. Here firms are influencing price and reacting to each other.
• Natural monopoly: Usually due to cost - related factors (e.g., economies of scale over a large range of output) leading to one - firm dominance. Not the case here.

Answer:

A. oligopoly