A firm sells its output in a perfectly competitive market at
$5
per unit and hires labour in a perfectly competitive labour market. Its daily production schedule is shown below.
| Number of workers |
Total product (units per day) |
| 0 |
0 |
| 1 |
20 |
| 2 |
38 |
| 3 |
54 |
| 4 |
68 |
| 5 |
80 |
| 6 |
90 |
If the daily wage is
$65, how many workers will the profit-maximising firm hire, and how many will it hire if the wage falls to
$55?
Select one option.