10) Which of the following can be used to help explain wage differences among
different groups of workers?
a.human capital
b.discrimination
c.unions
d.All of the above could explain wage differences among groups.
11) Sam needs to have his car serviced. There is an auto repair shop located nearby that
does a lot of business and has an online rating of 4 out of 5 stars. Sam takes his car to
be serviced and thinks the service person is grumpy and that his car is still not running
as well as it could be. Sam then makes a point of telling his friends not to use the repair
shop. Sam’s actions illustrate which of the following systematic mistakes that people
make when making decisions?
a.People are overconfident.
b.People give too much weight to a small number of vivid observations.
c.People are reluctant to change their minds.
d.All of the above are correct.
12) Any point on a country’s production possibilities frontier represents a combination
of two goods that an economy
a.will never be able to produce.
b.can produce using all available resources and technology.
c.can produce using some portion, but not all, of its resources and technology.
d.may be able to produce in the future with more resources and/or superior technology.
13) If the tax on gasoline increases from $2 to $4 per gallon, the deadweight loss from
the tax increases by a factor of
a.one-half.
b.two.
c.four.
d.six.