Mindtap Economics, 1 Term (6 Months) Printed Access Card For Arnold's Microeconomics, 12th
Mindtap Economics, 1 Term (6 Months) Printed Access Card For Arnold's Microeconomics, 12th
12th Edition
ISBN: 9781305396739
Author: Roger A. Arnold
Publisher: Cengage Learning
Question
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Chapter 9, Problem 1VQP
To determine

The condition of P = MR in a perfectly competitive market.

Expert Solution & Answer
Check Mark

Explanation of Solution

Price is always equal to the marginal revenue of a firm in a perfectly competitive market. This is because of the charging of uniform price in the perfectly competitive market. And there is no change in price as additional quantity of output sale. It is expressed in Table 1 as follows:

Table 1

PriceQuantityTotal RevenueMarginal Revenue
$2512525
$2525025
$2537525

Table 1 represents that in a perfectly competitive market, the price is equal to marginal revenue.

Economics Concept Introduction

Marginal revenue: Marginal revenue is the addition to the total revenue that results from selling an extra unit of output.

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Prove that for a perfectly competitive firm, P = MR
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