External costs can be defined as
A) the cost associated with private production, but partially borne by society.
B) the sum of all private production costs.
C) the cost of running the federal government.
D) the cost of providing all public goods and services.
Question 2
Refer to the above figure for a particular good. The rightward shift of the curve could have been caused by
A) a decrease in the price of an input.
B) a decrease in the price of that good.
C) an increase in the price of a complementary good.
D) an increase in the price of a substitute good.