Question 1:
A. Based on the following table, what is the profit maximizing output?
| Output | Price | Total Costs | 
| 0 | $ 10 | $ 31 | 
| 1 | 10 | 40 | 
| 2 | 10 | 45 | 
| 3 | 10 | 48 | 
| 4 | 10 | 55 | 
| 5 | 10 | 65 | 
| 6 | 10 | 80 | 
| 7 | 10 | 100 | 
| 8 | 10 | 140 | 
| 9 | 10 | 220 | 
| 10 | 10 | 340 | 
B. How would your answer change if, in response to an increase in demand, the price of the good increased to $15?
Question 2: A monopolist with a straight-line demand curve finds that it can sell two units at $12 each or 12 units at $2 each. Its fixed cost is $20 and its marginal cost is constant at $3 per unit.
a) Draw the MC, ATC, MR, and demand curves for this monopolist.
b) At what output level would the monopolist produce?
c) At what output level would a perfectly competitive firm produce?
Question 3: Suppose a monopolistic competitor in long-run equilibrium has a constant marginal cost of $6 and faces the demand curve given in the following table:
| Q | 20 | 18 | 16 | 14 | 12 | 10 |  8 |  6 | 
|  P | $ 2 |  4 |  6 |  8 | 10 | 12 | 14 | 16 | 
a. What output will the firm choose?
b. What will the monopolistic competitor’s average Fixed cost at the output it chooses?
Question 4: The pizza market is divided as follows:
| Pizza Hut | 20.7% | 
| Domino's | 17.0 | 
| Little Caesars | 6.7 | 
| Pizza Inn/Pantera's | 2.2 | 
| Round Table | 2.0 | 
a) How would you describe its market structure?
b) What is the approximate Herfindahl index?
c) What is the four-firm concentration ratio?