10) The opportunity cost of capital is an implicit cost almost every business incurs.
a.True
b.False
11) The case of perfectly elastic demand is illustrated by a demand curve that is
a.vertical.
b.horizontal.
c.downward-sloping but relatively steep.
d.downward-sloping but relatively flat.
12) Four roommates share an off-campus house and equally share the cost of rent.
Everyone says that she values a clean house, yet the house is usually dirty. To an
economist, a clean house in this case represents
a.a common resource problem.
b.a public good.
c.a natural monopoly.
d.All of the above are correct.
13) Given a consumer’s indifference map, the demand curve for a good can
a.be derived by moving a consumer’s budget constraint as her income falls.
b.be derived by moving a consumer’s budget constraint as her income rises.
c.be derived by moving a consumer’s budget constraint as the market price of one good
changes.
d.not be derived from consumer theory.
14) A manufacturer produces 400 units when the market price is $10 per unit and
produces 600 units when the market price is $12 per unit. Using the midpoint method,
for this range of prices, the price elasticity of supply is about
a. 0.45
b.2.0