13)
Refer to the diagram above. Assuming it represents the overall supply of energy, at what
per barrel price of oil does the extraction of shale oil become economically viable?
A.$40.
B.$50.
C.$60.
D.$70.
14) which of the following statements is correct?
a.the united states’ exports and imports are smaller absolutely, but larger as a percentage
of gdp, than other nations’.
b.a number of other nations have exports and imports that are absolutely larger than
those of the united states.
c.the united states’ exports and imports are absolutely larger than any other nation’s, but
the exports and imports of many other nations are a larger percentage of their gdps.
d.the united states’ exports and imports are larger absolutely and as a percentage of gdp
than any other nation’s.
15) A profit-maximizing firm should not undertake a R&D project for which the:
A.expected rate of return exceeds its interest-rate cost of funds.
B.interest-rate cost of funds exceeds the expected rate of return.
C.expected returns are in the distant future.
D.the expected returns, though potentially very large, are uncertain.
16) When economists say that money serves as a store of value, they mean that it is:
A.a way to keep wealth in a readily spendable form for future use.