27) the accompanying table that shows average total costs (atc) for a manufacturing
firm whose total fixed costs are $10:
refer to the above data. the marginal cost of the fourth unit of output is:
a.$2.
b.$12.
c.$37.
d.$16.
28)
ACME Corporation used to produce $50 worth of goods (in year 2000 dollars) per
million BTUs used. Now it produces $60 worth of goods (in year 2000 dollars) per
million BTUs. Based on this, we can conclude:
A.nothing about ACME’s energy efficiency.
B.that ACME’s energy efficiency has declined.
C.that ACME’s energy efficiency has improved.
D.that ACME is using a single energy source and achieving economies of scale in
production.
29) The discount rate is the interest:
A.rate at which the central banks lend to the U.S. Treasury.
B.rate at which the Federal Reserve Banks lend to commercial banks.
C.yield on long-term government bonds.
D.rate at which commercial banks lend to the public.
30) Which of the following are included and which are excluded in calculating this
years GDP? Explain in each instance.
(a)An auto mechanic who fixes his own car at home
(b)Cash received from selling a corporate bond