AP Microeconomics 5.4 Monopsonistic Markets Questions

Review how a single labor buyer uses MRP, MFC, and labor supply to choose employment and wages, then compare competition and analyze minimum-wage effects.

Syllabus
Effective Fall 2022
Course
AP Microeconomics

Exam points

  • identify monopsony and explain why its MFC curve lies above the labor-supply curve
  • choose monopsony employment where MRP equals MFC and read the wage from labor supply
  • explain why MRP exceeds the wage at the monopsonist's profit-maximizing employment
  • compare monopsony with a competitive labor market using employment and wage
  • trace a labor-demand or MRP shift through monopsony employment, wage and MFC

Question 1

[Maximum number: 4]

Quartz Excavations is a profit-maximizing firm and the only employer of miners of quartz in a small town. The graph provided shows the labor market for miners.

Figure for Question 1 — AP Microeconomics

Question (a)

(a)

Identify Quartz Excavations' profit-maximizing number of miners to hire.

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Question (b)

(b)

Will Quartz Excavations pay its profit-maximizing number of miners a wage rate that is equal to $15, greater than $15, or less than $15? Explain using numbers.

[ 1 ]

Question (c)

(c)

Suppose the government sets a minimum wage (a price floor on wages) at $25\$ 25. Calculate the total wage bill for Quartz Excavations at the resulting profit-maximizing number of miners.

Show your work.

[ 1 ]

Question (d)

(d)

Suppose that instead of a minimum wage, there is now an increase in the demand for quartz.

[ 1 ]

Question (i)

(i)

After the demand for quartz increases, Quartz Excavations hires the new profit-maximizing number of miners. Will the marginal factor cost of the last miner hired be greater than, less than, or equal to the marginal factor cost of the last miner hired before the demand for quartz increased?

[ 1 ]
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