题目内容

The short run is

A. less than a year.
B. three years.
C. however long it takes to produce the planned output.
D. a time period in which at least one input is fixed.
E. a time period in which at least one set of outputs has been decided upon.

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A. Q ∙ L.
B. Q / L.
C. ΔL / ΔQ.
D. ΔQ / ΔL.

A. average product.
B. slope of a line from the origin to the point.
C. marginal product.
D. marginal rate of technical substitution.

A. total returns.
B. marginal returns.
C. average returns.
D. all of these.

A. the marginal product of labor is 3.
B. the total product of labor is 1/3.
C. the average product of labor is 3.
D. none of the above