Which of the following best illustrates the free rider problem?
A) Since no one owns elephants and elephants are valued for their hide, meat and ivory,
elephants can be hunted to extinction.
B) For every purchase of a $30 fare card, you are entitled to five free bus rides.
C) If your neighbors professionally landscape their front yards, it is likely that the
market value of your property will increase.
D) All three homeowners in a quiet cul-de-sac have expressed the desirability of
security lighting in the common parking area. One of the homeowners installs the
lighting and asks you to contribute toward the cost. You choose not to contribute.
Suppose when Nablom’s Bakery raised the price of its breads by 10 percent, the
quantity demanded fell by 15 percent. What was the effect on sales revenue?
A) Sales revenue increased.
B) Sales revenue remained unchanged.
C) Sales revenue decreased.
D) It cannot be determined without information on prices.