Chapter 14, Problem 8PA

### Principles of Microeconomics

7th Edition
N. Gregory Mankiw
ISBN: 9781305156050

Chapter
Section

### Principles of Microeconomics

7th Edition
N. Gregory Mankiw
ISBN: 9781305156050
Textbook Problem

# A profit-maximizing firm in a competitive market is currently producing 100 units of output. It has average revenue of $10, average total cost of$8, and fixed cost of \$200.a. What is its profit?b. What is its marginal cost?c. What is its average variable cost?d. Is the efficient scale of the firm more than, less than, or exactly 100 units?

Subpart (a):

To determine
Calculate the profit.

Explanation

The profit can be calculated by using the following formula:

Profit=(Priceâˆ’AvaregaÂ totalÂ cost)Ã—Quantity Â  (1)

Substitute the value in equation (1) and calculate the profit

Subpart (b):

To determine
The profit, marginal cost, average variable cost, efficient scale of the firm is more or less than or exactly 100 units.

Subpart (c):

To determine
The profit, marginal cost, average variable cost, efficient scale of the firm is more or less than or exactly 100 units.

Subpart (d):

To determine
The profit, marginal cost, average variable cost, efficient scale of the firm is more or less than or exactly 100 units.

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