A change in which of the following can change the long-run growth rate of the economy in the Romer model?
A) investments in public infrastructure
B) the national saving rate
C) the fraction of the population engaged in and the productiveness of research and development
D) government spending and tax rates
C
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Firm A producing one good acquires another firm B producing another good. The cross price elasticity of demand for the goods owned by each firm is 2.6 . Holding other things constant, the acquiring firm should
a. Raise prices on both goods b. Lower prices on both goods c. Raise price on the acquired good only d. Need more information
Suppose an increase in disposable income from $3 trillion to $3.2 trillion increases consumption from $2.5 trillion to $2.6 trillion. The marginal propensity to consume (MPC) is _____
Fill in the blank(s) with the appropriate word(s).
Suppose a country experiences an increase in output per worker. Such a development represents which of the following?
A) an increase in labor productivity B) an increase in population growth C) a reduction in the saving rate D) a decrease in economic growth
Which situation is most likely to exhibit diminishing marginal returns to labor?
A) a factory that obtains a new machine for every new worker hired B) a factory that hires more workers and never increases the amount of machinery C) a factory that increases the amount of machinery and holds the number of worker constant D) None of these situations will result in diminishing marginal returns to labor.