Directions: There are 10 questions in this part of the test. Read the
passage through. Then, go back and choose one suitable word or phrase marked A,
B, C, or D for each blank in the passage. Mark the corresponding letter of the
word or phrase you have chosen with a single bar across square brackets on your
Machine-scoring Answer Sheet. Public
goods are those commodities from whose enjoyment nobody can be 1 excluded. Everybody is free to 2 the benefits of these commodities, and one
person’s utilization 3 the
possibilities of anybody else’s enjoying the same goods.
Examples of public goods are not 4 one might expect. A flood control dam is a public goods. Once the dam is
built, all the people living in the area will benefit 5
their own contribution to the construction cost of the dam. The
same 6 true for highway signs or aids to
navigations. Once a lighthouse is built, no ship of any nationality can be
effectively excluded from the 7 the
lighthouse for navigational purposes. National defense is another example. Even
a person who voted against military expenditures or 8
taxes will benefit from the protection afforded.
It is no easy task to determine the social costs and social
benefits associated with a public good. There is no practicable way of 9 drivers for 100 at highway signs, sailors for
watching a lighthouse, and citizens for the security provided to them through
national defense. 10 the market does
not provide the necessary signals, economic analysis has to be substituted for
the impersonal judgment of the market place.
A. will reduce
B. will enhance
C. does not reduce
D. does not exclude