In: Economics
A firm can hire 20 workers for $10 per hour, but finds it must raise the wage to $12 to attract another worker. If it must pay all its workers the same wage, the marginal wage cost of the 21st worker is _.
A.$10.
B. $11.
C. $21.
D. $31.
Correct Answer: D] $31
Explanation:
A firm can hire 20 workers for $10 per hour, the marginal wage cost of the 21st worker is 21 + 10 = $31