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ENTRY BARRIERS: Institutional, government, technological, or economic restrictions on the entry of firms into a market or industry. The four primary barriers to entry are: resource ownership, patents and copyrights, government restrictions, and start-up costs. Barriers to entry are a key reason for market control and the inefficiency that this generates. In particular, monopoly, oligopoly, monopsony, and oligopsony often owe their market control to assorted barriers to entry. By way of contrast, perfect competition, monopolistic competition, and monopsonistic competition have few if any barriers to entry and thus little or no market control.
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DUOPOLY An oligopoly market structure containing exactly two firms. As an oligopoly, duopoly exhibits the oligopolistic characteristics and undertakes oligopolistic behavior, such as barriers to entry, interdependent actions, and nonprice competition. While duopoly, in its purest form of EXACTLY two firms in the industry, is seldom found in the real world, it does provide an excellent, easy to use illustration of oligopoly. In fact, most instructional analysis of oligopoly generally assumes a two-firm, duopoly market.
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BEIGE MUNDORTLE
[What's This?]
Today, you are likely to spend a great deal of time going from convenience store to convenience store seeking to buy either a rechargeable flashlight or storage boxes for your computer software CDs. Be on the lookout for cardboard boxes.
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This isn't me! What am I?
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More money is spent on gardening than on any other hobby.
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"If a man hasn't discovered something that he will die for, he isn't fit to live. " -- Martin Luther King Jr., clergyman
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PIT
Personal Income Tax
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