How would each of the following likely affect the real wage and employment of unskilled workers on an automobile plant assembly line? (LO3)

a. Demand for the type of car made by the plant increases.

b. A sharp increase in the price of gas causes many commuters to switch to mass transit.

c. Because of alternative opportunities, people become less willing to do factory work.

d. The plant management introduces new assembly-line methods that increase the number of cars unskilled workers can produce per hour while reducing defects.

e. Robots are introduced to do most basic assembly-line tasks.

f. The workers unionize.