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AP Microeconomics Practice Quiz: Introduction to Factor Markets

Written by AP Content Team, Verified for 2026 AP Exams, Last updated: May 2026

Test your understanding with short quizzes. This quiz has 9 questions to check your progress.

Question 1 of 9

In the context of factor markets, which of the following best describes the payment a firm makes for the use of land?

All Questions (9)

In the context of factor markets, which of the following best describes the payment a firm makes for the use of land?

A) Wages

B) Interest

C) Rent

D) Profit

Correct Answer: C

The provided content states that factors of production (labor, capital, and land) respond to factor prices (wages, interest, and rent). Rent is the specific factor price associated with land.

According to the principles of labor markets, what is the relationship between the wage rate and the quantity of labor demanded by firms, holding other factors constant?

A) A positive relationship, where a higher wage rate leads to a higher quantity of labor demanded.

B) A negative relationship, where a higher wage rate leads to a lower quantity of labor demanded.

C) No relationship, as the quantity of labor demanded is independent of the wage rate.

D) A variable relationship that depends on the industry.

Correct Answer: B

The content explicitly states, 'The quantity of labor demanded is negatively related to the wage rate... other things constant.' This means as wages increase, firms will demand less labor.

A firm's decision to hire an additional unit of a factor of production is primarily based on a comparison between the factor's:

A) Productivity and the firm's total revenue.

B) Cost and the average price of the firm's competitors.

C) Productivity, the output price, and the cost of the factor.

D) Cost and the total number of employees in the firm.

Correct Answer: C

The content states that 'employers' (firms') decision to hire is based on the productivity of the factors, output price, and cost of the factor.' These three components are used to compare the additional revenue generated by the factor (marginal revenue product) to its additional cost (marginal resource cost).

Which of the following scenarios describes the law of supply in a typical labor market?

A) As the wage rate for accountants decreases, more people choose to become accountants.

B) As the wage rate for electricians increases, the number of people willing and able to work as electricians increases.

C) A firm decides to hire fewer welders because the price of its final product has decreased.

D) A firm lays off workers because the wage rate has increased.

Correct Answer: B

The content specifies that 'the quantity of labor supplied is positively related to the wage rate in a given labor market, other things constant.' This means that a higher wage incentivizes more individuals to supply their labor in that market.

A company that produces widgets sells each one for $10. The table below shows the company's production schedule. What is the marginal revenue product (MRP) of the third worker? | Number of Workers | Total Widgets Produced | |-------------------|------------------------| | 0 | 0 | | 1 | 15 | | 2 | 28 | | 3 | 38 | | 4 | 45 |

A) $10

B) $100

C) $280

D) $380

Correct Answer: B

Marginal Revenue Product (MRP) is calculated as the Marginal Product (MP) of the worker multiplied by the output price. The third worker increases production from 28 to 38 widgets, so their MP is 10 (38 - 28). The MRP is the MP (10) times the price ($10), which equals $100.

Using the same data, if the market wage rate (marginal resource cost) for each worker is $80 per day, how many workers will this profit-maximizing firm hire? | Number of Workers | Total Widgets Produced | |-------------------|------------------------| | 0 | 0 | | 1 | 15 | | 2 | 28 | | 3 | 38 | | 4 | 45 | (Product Price = $10)

A) 1 worker

B) 2 workers

C) 3 workers

D) 4 workers

Correct Answer: C

A firm hires workers as long as the Marginal Revenue Product (MRP) is greater than or equal to the Marginal Resource Cost (MRC). The MRC is the wage of $80. MRP of 1st worker = (15-0) * $10 = $150 (Hire, $150 > $80) MRP of 2nd worker = (28-15) * $10 = $130 (Hire, $130 > $80) MRP of 3rd worker = (38-28) * $10 = $100 (Hire, $100 > $80) MRP of 4th worker = (45-38) * $10 = $70 (Do not hire, $70 < $80) The firm will hire 3 workers.

The term 'factor prices' refers to the:

A) prices firms charge for their final goods and services.

B) costs of raw materials used in the early stages of production.

C) prices paid for the use of factors of production, such as wages, interest, and rent.

D) average price level in the economy as a whole.

Correct Answer: C

The content directly defines factor prices as the payments for factors of production, listing 'wages, interest, and rent' as the corresponding prices for labor, capital, and land.

Which of the following would cause a firm's demand curve for labor to shift to the right, assuming other things remain constant?

A) A decrease in the wage rate for labor.

B) An increase in the price of the firm's output.

C) A decrease in the supply of labor.

D) A new government regulation that lowers worker productivity.

Correct Answer: B

A firm's decision to hire is based on productivity, output price, and factor cost. The demand for labor is derived from the marginal revenue product (MRP = MP x Price). An increase in the output price would increase the MRP at every level of employment, causing the firm to demand more labor at any given wage, thus shifting the labor demand curve to the right. A change in the wage rate (A) would cause a movement along the curve, not a shift.

Marginal resource cost (MRC) is best defined as the:

A) total cost of hiring all units of a factor of production.

B) average cost of a factor of production divided by the number of units hired.

C) additional revenue generated by hiring one more unit of a factor.

D) additional cost incurred by a firm for hiring one more unit of a factor.

Correct Answer: D

Based on the requirement to calculate marginal resource cost, the term 'marginal' refers to the change associated with one additional unit. Therefore, marginal resource cost is the change in total cost, or the additional cost, from employing one more unit of a resource like labor. For a firm hiring in a competitive labor market, the MRC is equal to the wage rate.