The costs affecting decisions to supply are always
A) accounting costs.
B) marginal costs.
C) past costs.
D) per unit costs.
E) non-taxable costs.
Question 2
A change in which of the following alters buying plans for cars but does NOT shift the demand curve for cars?
A) a 5 percent increase in people's income
B) a 10 percent decrease in the price of car insurance
C) a 20 percent increase in the price of a car
D) an increased preference for walking rather than driving