Purdue University North Central
Economics 251
Review Questions Chapter 30 - The Labor Market
(1) An upward-sloping labor supply curve reflects:
(a) the increasing marginal utility of income as a person works more hours and earns more income.
(b) the increase in the quantity of a good or service supplied as prices fall.
(c) the increasing opportunity cost of work in terms of leisure foregone as the hours of work increase.
(d) All of the above.
(2) A firm’s demand for labor is referred to as a derived demand because:
(a) it is derived from the demand for the product or service that the labor is producing.
(b) it is derived from the supply of labor.
(c) the quantity of goods and services labor can purchase is derived from the wages labor receives from the firm.
(d) None of the above are true.
(3) If the Marginal Physical Product (MPP) of an additional unit of labor is 2 units per hour, product price is $6 per unit, and the wage rate is $15 per hour, then:
(a) the additional unit of labor should be employed, as Marginal Revenue Product just equals the cost of labor.
(b) the additional unit of labor should not be employed because it costs more than it brings in, in terms of extra revenue.
(c) the firm is not hiring enough labor, as Marginal Revenue Product greatly exceeds the cost of labor.
(d) the firm should continue to hire labor until the Marginal Revenue Product is zero.
(4) The law of diminishing returns states that, ceteris paribus, the:
(a) Marginal Physical Product (MPP) of labor declines as additional land, raw materials, and other factors of production are employed.
(b) MPP of labor declines as the wage rate falls.
(c) MPP of labor declines as the product price declines.
(d) MPP of labor eventually declines as more and more labor is employed.
(5) Suppose that Silva’s Table Company uses both labor and capital (machines) to produce tables. Given a current mix of labor and machines, the cost efficiency of labor is 0.4 tables per dollar of input (labor) cost, and the cost efficiency of machines is 0.6 tables per dollar of input (machine) cost. Silva should:
(a) hire less labor and utilize more machinery.
(b) hire more labor and utilize less machinery.
(c) continue the same mix, as it ensures optimum cost efficiency.
(d) None of the above.
(6) The opportunity wage is defined as:
(a) the value of goods or services that an individual can purchase with the income earned by working one hour.
(b) the income an individual loses when he or she quits a job.
(c) the highest wage an individual would earn in his or her best alternative job.
(d) the value of goods or service that could be purchased with a certain individual’s income.
Utilize the data in the following table to answer Questions (7) and (8). Assume that the product price is $2 per unit and the hourly wage for workers is $8.
Number of Total Marginal Physical Marginal Revenue
Workers Output Product (output Product (dollars
(per hour) (per hour) per worker) per worker)
1 4 ____ ______
2 10 ____ ______
3 15 ____ ______
4 19 ____ ______
5 22 ____ ______
(7) In the table above, the Marginal Revenue Product of the second worker hired is:
(a) $6 per hour.
(b) $20 per hour.
(c) $12 per hour.
(d) $8 per hour.
(8) In the table above, how many workers should be hired?
(a) 2.
(b) 3.
(c) 4.
(d) 5.
Consider the data in the following table to answer Question (9). Assume that the cost of labor is $2 per unit, and the cost of capital is $4 per unit.
Output Labor Output Capital
(units) (units) (units) (units)
12 1 18 1
22 2 30 2
30 3 40 3
(9) In the table above, what is the cost efficiency of the second unit of labor?
(a) 22 units per $1 of cost.
(b) 11 units per $1 of cost.
(c) 5 units per $1 of cost.
(d) 4 units per $1 of cost.
Consider Figure 1 in answering Question (10).
Figure 1
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(10) In Figure 1, a minimum wage of $10 will result in:
(a) a shortage of 80 workers.
(b) a surplus of 16 workers.
(c) a shortage of 90 workers.
(d) a surplus of 10 workers.