What is UTILITY?

Define MARGINAL UTILITY and give its FORMULA.

What is the LAW OF DIMINISHING MARGINAL UTILITY?

Sketch a graph of TU and MU

Can utility be measured?

Write the utility maximizing rule formula

Write the Benefit-Cost Analysis formula

Explain why the utility maximizing rule is really a version of Benefit-Cost Analysis.


PROBLEM 1

Assume that a consumer purchases a combination of products A and B. The MUa is 5 and the Pa is $5. The MUb is 6 and the Pb is $6.

What should this consumer do to maximize utility?

PROBLEM 2

Assume that a consumer purchases a combination of products Y and Z. The MUy is 50 and the Py is $25. The MUz is 20 and the Pz is $5.

What should this consumer do to maximize utility?

PROBLEM 3

Columns 1 through 3 in the table below show the marginal utility which a particular consumer would get by purchasing various quantities of products A, B, and C.

Unit of product

Marginal utility, A

Marginal utility, B

Marginal utility, C

First

18

39

12

Second

16

36

10

Third

14

33

9

Fourth

12

30

8

Fifth

10

27

7

Sixth

8

24

5

Seventh

6

21

3

If the prices of A, B, and C are $2, $3, and $1, respectively, and the consumer has $26 to spend on these three products, what combination of the three products should be purchased in order to maximize utility?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


If the prices of A, B, and C are $2, $3, and $1, respectively

Unit of product

Marginal utility, A

MU/Pa

Marginal utility, B

MU/Pb

Marginal utility, C

MU/Pc

First

18

9

39

13

12

12

Second

16

8

36

12

10

10

Third

14

7

33

11

9

9

Fourth

12

6

30

10

8

8

Fifth

10

5

27

9

7

7

Sixth

8

4

24

8

5

5

Seventh

6

3

21

7

3

3

The consumer has $26 to spend on these three products, what combination of the three products should be purchased in order to maximize utility?