What is true of depletable resources is that
a. increasing scarcity leads to their total disappearance.
b. they are depleted by gradually using up the supply of homogeneous resources, every
unit of which is equally available.
c. generally the most accessible and cheapest sources are used up so that new supplies
become more costly.
d. their prices must rise at the average rate of inflation.
The City Symphony presents three open-air concerts in the city park pavilion during the
spring and summer. Many who attend make donations for symphony expenses, but the
donation is not required. Some who attend make no contributions. Economists would
a. classify the noncontributors as detrimental externalities.
b. call the concerts excludable events.
c. call the noncontributors free riders.
d. call the concerts depletable goods.
Professional baseball teams in the United States use only wooden bats. If aluminum
bats were permitted, the likely result would be a