8. To increase marginal utility, you must decrease consumption (everything else held constant). This statement is correct, even though it sounds strange. Explain why.

9. Suppose that the marginal utility of good A is 4 times the marginal utility of good B, but the price of good A is only 2 times the price of good B. Is this point consumer equilibrium? If not, what will occur?

13. What is the purpose of the two fields of study, neuroeconomics and behavioral economics? Why might people tend to be overconfident?

1. Use the following information to determine the total fixed costs, total variable costs, average fixed costs, average variable costs, average total costs, and marginal costs. Total Output Costs TFC TVC AFC AVC ATC MC
0 $100
1 $150
2 $225
3 $230
4 $300
5 $400
2. Use the following table to answer the questions listed below. Total Output Cost TFC TVC AFC AVC ATC MC
0 $20
10 $ 40
20 $ 60
30 $ 90
40 $120
50 $180
60 $280
a. Calculate the total fixed costs, total variable costs, average fixed costs, average variable costs, average total costs, and marginal costs.
b. Plot each of the cost curves.
c. At what quantity of output does marginal cost
equal average total cost and average variable cost?
3. Using the table in exercise 1, explain what happens to ATC when MC > ATC , MC < ATC , and MC .
ATC.

4. Using the table in exercise 2, find the quantity where MC . ATC. Find the quantity where ATC is at its minimum. Find the quantity that is the most efficient operating point for the firm.

11. Consider a firm with a fixed-size production facility as described by its existing cost curves.
a. Explain what would happen to those cost curves if a mandatory health insurance program is imposed on all firms.
b. What would happen to the cost curves if the plan required the firm to provide a health insurance program for each employee worth 10 percent of
the employee's salary?
c. How would that plan compare to one that requires each firm to provide a $100,000 group program that would cover all employees in the firm, no matter what the number of employees was?