Sam's profit is maximized when he produces   shirts. When he does this, the marginal cost of the last shirt he produces is   , which is    than the price Sam receives for each shirt he sells. The marginal cost of producing an additional shirt (that is, one more shirt than would maximize his profit) is   , which is    than the price Sam receives for each shirt he sells. Therefore, Sam's profit-maximizing quantity corresponds to the intersection of the    curves. Because Sam is a price taker, this last condition can also be written as    .

Microeconomic Theory
12th Edition
ISBN:9781337517942
Author:NICHOLSON
Publisher:NICHOLSON
Chapter11: Profit Maximization
Section: Chapter Questions
Problem 11.11P
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Sam's profit is maximized when he produces

 

shirts. When he does this, the marginal cost of the last shirt he produces is

 

, which is    than the price Sam receives for each shirt he sells. The marginal cost of producing an additional shirt (that is, one more shirt than would maximize his profit) is

 

, which is    than the price Sam receives for each shirt he sells. Therefore, Sam's profit-maximizing quantity corresponds to the intersection of the    curves. Because Sam is a price taker, this last condition can also be written as    .

 

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