Problem 1002 Algo a Complete the following table Instruction
Problem 10-02 (Algo)
(a) Complete the following table:
Instructions: Enter your responses rounded to the nearest whole number. Indicate a negative response with a (-) negative sign.
(b) At what rate of output does marginal revenue turn negative?
(c) If marginal cost is constant at $20, what is the profit-maximizing rate of output?
(d) Assuming a firm has monopoly power, what price should be charged at that rate of output?
$
| Price | $26 | $23 | $20 | $17 | $14 | $11 | $9 | $5 |
| Quantity demanded | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Marginal revenue | $ | $ | $ | $ | $ | $ | $ | $ |
Solution
a) From the table shown in para b), we find that marginal revenue is negative when quantity demanded is 6 units.
b)We can show the calculation in the following table:
Quantity demanded
Price
Total Revenue
Marginal Revenue
1
$26
$26
-
2
$23
$46
$20
3
$20
$60
$14
4
$17
$68
$8
5
$14
$70
$2
6
$11
$66
-$4
7
$9
$63
-$3
8
$5
$40
-$23
From the above table, it is clear that profit-maximizing output of the firm is 2 units where marginal revenue = marginal cost= $20
c) If the firm is a monopoly then it will charge a price such that marginal revenue = 0 At profit maximizing output 2, the price charged is $26 which should be $13 so that marginal revenue =0
| Quantity demanded | Price | Total Revenue | Marginal Revenue |
| 1 | $26 | $26 | - |
| 2 | $23 | $46 | $20 |
| 3 | $20 | $60 | $14 |
| 4 | $17 | $68 | $8 |
| 5 | $14 | $70 | $2 |
| 6 | $11 | $66 | -$4 |
| 7 | $9 | $63 | -$3 |
| 8 | $5 | $40 | -$23 |

