ECO 550 Check Your Understanding – Week 7

Week 7 – Check Your Understanding:

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Chapter 13 Exercise 2, 13, and 15

 

2. Consider the following payoff matrix:

             

   

      

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    1

 

   

 

     -$1,000   $2,000  

    2

-$2,000

  $1,000    

                 

           

         

Player B Strategy

1 2

$1,000

$2,000

$2,000

-$1,000

Player A Strategy

a.     
Does Player A have a dominant strategy? Explain why or why not.

b.    

Does Player B have a dominant strategy? Explain why or why not.

 

13.  Analyze the following sequential game and advise

Kodak

about whether they should introduce the new product, Picture CD.

 

 

Kodak

 

   

   

   Kodak         

  Sony             High

 

  Moderate $620m $610m

    Kodak      Kodak    Low

$540m

 

    

   

 

  Sony        

 

New product Introduction

Rival   advertising

Pricing policy

Sony

High

$380m

$620m

Moderate

$610m

$590m

Low

$560m

$540m

$710m

$550m

Introduce picture CD

$570m

Do not introduce

Increased ads

$400m

$720m

Maintain ads

$580m

$600m

   

15.  A math graduate student explains to her friend how to approach a group of smart attractive guys who have brought along famous actor Russell Crowe.  What should her friend do?  Ignore Russell Crowe or fixate on Russell Crowe?  Explain the equilibrium reasoning underlying your answer.

                    

Student 1

         

Ignore R.C.

 

Fixate on R.C.

 

       

    

No date tonight

 

Date with R.C.

      

(Worse)

 

(Best)

 

   No date tonight   Date         

                       

with other guys    

  Ignore R.C. (Worse)  

(Better)

   

Student 2

   

Date                                 with other guys

 

No date ever

    Fixate on R.C.   (Better)  

(Worst)

     Date with R.C.   No date ever        (Best)   (Worst)    

                     

Note:

Best payoff – date with R.C., Better – date with other guys, Worse – no date tonight, Worst – no date ever with any of these guys.

 

Chapter 14 Exercise 3(b, c, d), 5(a, b, c), and 8(a, b, c)

 

3.  American Export-Import Shipping Company operates a general cargo carrier service between New York and several Western European ports.  It hauls two major categories of freight: manufactured items and semi-manufactured raw material.  The demand functions for these two classes of goods are

P1 = 100 – 2Q
1

P2 = 80 – Q
2

 

where Qi = tons of freight moved.  The total cost function for American is

TC = 20 + 4(Q
1 +Q
2)

                         

b.     What are the profits-maximizing levels of price and output for the two freight categories?

c.     

At these levels of output, calculate the marginal revenue in each market.

d.    
What are American’s total profits if it is effectively able to charge different prices in the two markets.

 

5.  Phillips Industries manufactures a certain product that can be sold directly to retail outlets or to the Superior Company for further processing and eventual sale as a completely different product.  The demand function for each of these markets is

Retail Outlets: P
1 = 60 – 2Q
1

Superior Company: P
2 = 40 – Q
2

Where P1 and P2 are the prices charged and Q

1 and Q2 are the quantities sold in the respective markets.  Phillips’ total cost function for the manufacture of this product is

TC = 10 + 8(Q
1 + Q
2)

a)    

Determine Phillips’ total profit function.

b)    

What are the profit-maximizing price and outlet levels for the product in the two markets?

c)    
At these levels of output, calculate the marginal revenue in each market.

 

8.  The Pear Computer Company just developed a totally revolutionary new personal computer.  It estimates that it will take competitors at least two years to produce equivalent products.  The demand function for the computer is estimated to be

P = 2,500 – 0.0005Q

The marginal (and average variable) cost of producing the computer is $900.

a)     Compute the profit-maximizing price and output levels assuming Pear acts as a monopolist for its product.

b)     Determine the total contribution to profits and fixed costs from the solution generated in Part (a).

Pear Computer is considering an alternative pricing strategy of price skimming.  It plans to set the following schedule of prices over the coming two years:

Time Period Price Quantity Sold 1 $2,400 200,000 2 2,200 200,000 3 2,000 200,000 4 1,800 200,000 5 1,700 200,000 6 1,600 200,000 7 1,500 200,000 8 1,400 200,000 9 1,300 200,000 10 1,200 200,000    

c.      Calculate the contribution to profit and overhead for each of the 10 time periods and prices.

   

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