29) Vaccinating people against a communicable disease such as influenza not only reduces the
chances that the person vaccinated will catch the disease but also reduces the probability that an
epidemic of the disease will occur. Which of the following statements is true?
A) Reducing the chances that the person vaccinated will catch the disease is a private cost while
reducing the probability of an influenza epidemic is a social benefit.
B) Vaccinating people against communicable diseases yields private benefits in excess of social
benefits.
C) Reducing the chances that the person vaccinated will catch the disease is a private benefit
while reducing the probability of an influenza epidemic is a social benefit.
D) The benefits of the influenza vaccination outweigh the costs.
30) In the United States, the bulk of health care spending is paid by health insurance companies.
Such a system is also called a third-party payer system where consumers of health care pay a
nominal fee and the rest are paid by the health insurance provider. Why might such a system
lead to an inefficient outcome?
A) Health insurance companies have an incentive to control cost and therefore tend to deny
consumers many cutting edge medical treatments.
B) Consumers have an incentive to over-consume health care services because they pay prices
well below the cost of providing these services.
C) Physicians concerned that insurance companies may not approve payments tend not to order
expensive tests for their patients.
D) Consumers fearing that excessive use of health care services may lead to a rise in insurance
premiums tend to under-consume health care services.