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Week 11
Managerial Economics
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Order of Business
• Homework
• Assigned Lectures
• Other Material
• Lectures for Next Week
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Homework-This Week
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Problem 1
• A monopolist has a demand function and a cost function given by the following table. How many should he produce? And what price should he sell it? And what will be his profits?
Q P C 0 6 1 15 11 2 13 16 3 11 21 4 8 26 5 7 31 6 6 36 7 5 41
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Problem 2
• Q = 420 - 10 P• There is one and
only one way of producing widgets. The cost varies with the number produced at each plant.
Q C 0 0 1 22 2 28 3 36 4 52 5 70
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Problem 2
• Q = 420 - 10 P• There is one and
only one way of producing widgets. The cost varies with the number produced at each plant.
Q C 0 0 1 22 2 28 3 36 4 52 5 70
Assume initially that, by law, a firm is limited to operating one and only one plant.
a. What level of output minimizes average cost? Explain your answer.
b. Assuming that the industry is competitive, what will be the price of widgets?
c. How many will be sold?
d. How many plants/firms will produce widgets?
e. Now assume that a firm is allowed a monopoly in the production of widgets. What price will it charge?
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Pashigian, Chapter 9, Exercise 5
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Pashigian, Chapter 9, Exercise 6
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Pashigian, Chapter 9, Exercise 9
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Pashigian, Chapter 9, Exercise 11
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Lectures for This Week
• Cartels
• Duopoly
• The Cournot Model
• A Second Cournot Example
• Extending the Cournot Model
• The Bertrand Model
• Nash Equilibrium
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•Cartels
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• Carnegie Watched the Costs and let the profits take care of themselves.
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• Form a Pool!
• And of course, they constantly broke down!
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•Duopoly
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•The Cournot Model
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•A Second Cournot Example
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•Extending the Cournot Model
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•The Bertrand Model
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•Nash Equilibrium
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Demand for PC’s
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Requires:
Intel Chip
Microsoft Windows
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Requires:
Intel Chip
Microsoft Windows
Macintosh
Linux
AMD
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P*
MR
P*/2
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P*
I
MSFT
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P*
I
MSFT
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P*
I
MSFT
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P*
I
MSFT
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P*
I
MSFT
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P*
I
MSFT
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P*
I
MSFT
Each sets the price at a third of the
maximum price. The combined price
is 2/3 of the max price.
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P*
I
MSFT
MCMSFT = 0
MCINTL >0.
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Lectures for Next Week
• Agency Problems
• Expense Preference
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•Agency Problems
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•Expense Preference