Figure 2.2
Figure 2.2 presents a production possibilities curve for a country that can either produce
highways or provide people with medical care in a given year. The opportunity cost of
the fourth new highway built in a year is:
A) 50,000 people provided with medical care.
B) 70,000 people provided with medical care.
C) 30,000 people provided with medical care.
D) 90,000 people provided with medical care.
To think at the margin means to consider:
A) how nothing remains constant over time.
B) how a small change in one variable affects another variable.