Which of the following is an example of an externality?
a. Drug abuse affecting David’s health.
b. Sara taking a break from work.
c. A transaction between two parties, affecting them alone.
d. Tom’s smoking affecting his roommate’s health.
Under perfect competition, regarding short-run profit, a firm may find itself losing
money. This is true because:
a. the firm was unable to pick the output that maximized profit
b. the market conditions make the highest possible profit a negative number
c. the demand for its product is weak or its costs are high
d. both b and c
Elasticity of demand is calculated using percentage changes in both price and quantity.
a. True
b. False