When we say investment in economics we are talking about:
A. stocks.
B. bonds.
C. physical capital.
D. None of these are examples of investment in economics.
C. physical capital.
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If the real value of your savings is decreasing over time, we know that the:
A. real rate of interest is positive. B. inflation is zero. C. real rate of interest is negative. D. real rate of interest is zero.
Public goods are
A. nondepleteable and nonexcludable. B. depleteable and excludable. C. nondepleteable but excludable. D. depleteable but nonexcludable.
Although central banks are responsible for foreign-exchange policy, they have no power to intervene in exchange rate markets.
a. true b. false
As a general rule, oligopoly exists when the four-firm concentration ratio:
A. exceeds the Herfindahl index. B. is less than the Herfindahl index. C. is 40 percent or more. D. is 15 percent or more.