Economics (MindTap Course List)
Economics (MindTap Course List)
13th Edition
ISBN: 9781337617383
Author: Roger A. Arnold
Publisher: Cengage Learning
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Chapter 23, Problem 1QP
To determine

The difference between perfectly competitive market and monopoly.

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Explanation of Solution

Both the productive and allocative efficiencies can only be seen in the perfectly competitive market, where the industry’s demand curve is horizontal. In a horizontal demand curve, price is equal to marginal cost is equal to marginal revenue is equal to average cost is equal to average revenue (P=MC=MR=AC=AR) . Therefore, the resource allocative efficiency P=MC exists in a perfectly competitive market, whereas in a single price monopoly that faces a downward sloping demand curve, the price will be greater than the marginal revenue. The monopoly firm produces at the point where MC=MR  while there is no resource allocative efficiency because monopoly sets a price that is greater than the marginal cost.

Economics Concept Introduction

Perfectly competitive market: A perfectly competitive market is a market structure where there are many buyers and sellers, and there are identical products in the market.

Monopoly: Monopoly refers to a market structure with the features of a single seller and more buyers. The firms have full control over the market.

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