Suppose the production of VCRs can be represented by the following production function: q = L0.4 K0.4. Which of the following statements is (are) TRUE?
A) The production function has decreasing returns to scale.
B) The marginal productivity of labor falls as labor increases in the short run.
C) Capital and labor can be substituted for one another.
D) All of the above.
D
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Solow's growth model improved upon the Harrod-Domar results by
a. incorporating technological change into the model b. making a economic growth a reasonable outcome rather than one dictated by specialcircumstances c. assuming that GDP would fluctuate, rather than grow steadily d. removing investment from the model e. none of the above
Assume that the currency—deposit ratio is 0.2 and the reserve—deposit ratio is 0.1. The Federal Reserve carries out open-market operations, purchasing $1 million worth of bonds from banks. This action will increase the money supply by
A) $1 million. B) $2 million. C) $3 million. D) $4 million.
During a period of economic expansion, when expected profitability is high,
A) the demand curve for bonds shifts to the left. B) the supply curve of bonds shifts to the right. C) the equilibrium interest rate falls. D) the equilibrium price of bonds rises.
Refer to the above figure. Regulators cannot force natural monopolies to operate in the long run at a loss. Therefore, they usually require the firms to charge a price equal to
A) marginal cost, which is P1. B) marginal cost, which is P2. C) average cost, which is P3. D) average cost, which is P4.