Winthrop University
Winthrop University
College of Business Administration
Monopolistic Competition
Characteristics
Product Differentiation
service
advertising
quality
Why are they inefficient?
Short Run Picture
To find the profit maximizing quantity go to the point where MR=MC then go down to the quantity axis, this is q*. To find the profit maximizing price go to the point where MR=MC then go up to demand curve, take a left over to the price axis, this is p*. To find the average cost at q*, go to where MR=MC, go up to the AC curve, then take a left toward the price axis, this is AC*. Profit is the area (p*-AC*) over to q*.
Long Run Picture
The profit maximizing price is equal to the average cost.
Long run profit is 0.
This is not efficient
dead weight loss
combative advertising
not operating at full capacity
Why do firms in monopolistic competitive industries produce similar products, charge similar prices, hire similar workers, and locate near each other?
Practice Questions
Monopolistic Competition Graphs
P
MC
AC
MR D
q
Firm short-run
a. Find the profit maximizing price
b. Find the profit maximizing quantity
c. What is the difference between the monopolistic competition model and the monopoly model?
d. Is there a dead weight loss?
P
MC AC
D
MR
q
Firm long-run
a. Find the profit maximizing price
b. Find the profit maximizing quantity
c. What is the difference between the monopolistic competition model and the monopoly model?
d. Is there a dead weight loss?
e. Why isn’t the firm operating efficiently?
f. Explain how advertising impacts the firm?
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