题目内容

National income or output is determined by ( ).

A. Capital
B. Labor
C. Technology
D. All of the above

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In a competitive market, real wage in equilibrium equals ( )

A. Real rental price
B. Marginal product of capital
C. Marginal product of labor
D. Average product of labor

In a model when technology A, capital K, labor L, government purchase G, and tax T are given, we know ( )

A. National output is constant
B. National saving is constant
C. Public saving is constant
D. All of the above

In our model of closed economy in the textbook, real interest rate r is important, because ( )

A. Saving must change when r changes
B. Investment changes when r changes
C. Output changes when r changes
D. All of the above

A steel company sells some steel to a bicycle company for $100. The bicycle company uses the steel to produce a bicycle, which it sells for $200. Taken together, these two transactions contribute ()

A. $100 to GDP.
B. $200 to GDP.
C. between $200 and $300 to GDP, depending on the profit earned by the bicycle company when it sold the bicycle.
D. $300 to GDP.

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