C.positive externality because they help police find and break-up “chop-shops.”
D.moral hazard problem because people who own them tend to park their cars in riskier
locations than they would otherwise.
22) if a firm can sell 3,000 units of product a at $10 per unit and 5,000 at $8, then:
a.the price elasticity of demand is 0.44
b.a is a complementary good.
c.the price elasticity of demand is 2.25
d.a is an inferior good.
23) Unintended changes in inventories:
A.cause the economy to move away from the equilibrium GDP.
B.are treated as components of consumption.
C.bring actual investment and saving into equality only at the equilibrium level of GDP.
D.bring actual investment and saving into equality at all levels of GDP.
24) Which of the following best describes the cause-effect chain of a restrictive
monetary policy?
A.A decrease in the money supply will lower the interest rate, increase investment
spending, and increase aggregate demand and GDP.
B.A decrease in the money supply will raise the interest rate, decrease investment
spending, and decrease aggregate demand and GDP.
C.An increase in the money supply will raise the interest rate, decrease investment
spending, and decrease aggregate demand and GDP.
D.An increase in the money supply will lower the interest rate, decrease investment
spending, and increase aggregate demand and GDP.
25) an industry comprised of four firms, each with about 25 percent of the total market
for a product is an example of:
a.monopolistic competition.
b.oligopoly.
c.pure monopoly.
d.pure competition.