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OLIGOPOLY AND MONOPOLISTIC COMPETITION: Oligopoly and monopolistic competition have some similarities, but also have a few important differences. Both are examples of imperfect competition on the market structure continuum between ideals of perfect competition and monopoly. However, oligopoly contains a small number of large firms and monopolistic competition contains a large number of small firms. The dividing line between oligopoly and monopolistic competition can be blurred due to the number of firms in the industry.

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MARGINAL REVENUE, PERFECT COMPETITION

The change in total revenue resulting from a change in the quantity of output sold. Marginal revenue indicates how much extra revenue a perfectly competitive firm receives for selling an extra unit of output. It is found by dividing the change in total revenue by the change in the quantity of output. Marginal revenue is the slope of the total revenue curve and is one of two revenue concepts derived from total revenue. The other is average revenue. To maximize profit, a perfectly competitive firm equates marginal revenue and marginal cost.

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BEIGE MUNDORTLE
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Today, you are likely to spend a great deal of time browsing through a long list of dot com websites hoping to buy either clothing for your kitty cats or a set of luggage without wheels. Be on the lookout for cardboard boxes.
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Mark Twain said "I wonder how much it would take to buy soap buble if there was only one in the world."
"Even a mistake may turn out to be the one thing necessary to a worthwhile achievement."

-- Henry Ford

JPE
Journal of Political Economy
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