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For many firms,capital is the production input that is typically fixed in the short run.Which of the following firms would face the longest time required to adjust its capital inputs?


A) Firm that makes DVD players.
B) Computer chip fabricator
C) Flat-screen TV manufacturer
D) Nuclear power plant

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The marginal product of an input is


A) total product divided by the amount of the input used to produce this amount of output.
B) the addition to total output that adds nothing to total revenue.
C) the addition to total output that adds nothing to profit.
D) the addition to total output due to the addition of one unit of all other inputs.
E) the addition to total output due to the addition of the last unit of an input,holding all other inputs constant.

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E

If the isoquants in an isoquant map are downward sloping but bowed away from the origin (i.e.,concave to the origin) ,then the production technology violates the assumption of:


A) technical efficiency.
B) free disposal.
C) diminishing marginal returns.
D) positive average product.

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With increasing returns to scale,isoquants for unit increases in output become


A) farther and farther apart.
B) closer and closer together.
C) the same distance apart.
D) none of these.

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An important factor that contributes to labor productivity growth is:


A) growth in the capital stock.
B) technological change.
C) the standard of living.
D) A and B only
E) A,B,and C are correct.

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Does it make sense to consider the returns to scale of a production function in the short run?


A) Yes,this is an important short-run characteristic of production functions.
B) Yes,returns to scale determine the diminishing marginal returns of the inputs.
C) No,returns to scale is a property of the consumer's utility function.
D) No,we cannot change all of the production inputs in the short run.

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Consider the following statements when answering this question; I.If a technology exhibits diminishing returns then it also exhibits decreasing return to scale. II.If a technology exhibits decreasing returns to scale then it also exhibits diminishing returns.


A) I is true,and II is false.
B) I is false,and II is true.
C) Both I and II are true.
D) Both I and II are false.

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We manufacturer automobiles given the production function q = 5KL where q is the number of autos assembled per eight-hour shift,K is the number of robots used on the assembly line (capital) and L is the number of workers hired per hour (labor) .If we use K=10 robots and L=10 workers in order to produce q = 450 autos per shift,then we know that production is:


A) technologically efficient.
B) technologically inefficient.
C) maximized.
D) optimal.

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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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  Figure 6.3 -Refer to Figure 6.3.The situation pictured is one of A) constant returns to scale,because the line through the origin is linear. B) decreasing returns to scale,because the isoquants are convex. C) decreasing returns to scale,because doubling inputs results in less than double the amount of output. D) increasing returns to scale,because the isoquants are convex. E) increasing returns to scale,because doubling inputs results in more than double the amount of output. Figure 6.3 -Refer to Figure 6.3.The situation pictured is one of


A) constant returns to scale,because the line through the origin is linear.
B) decreasing returns to scale,because the isoquants are convex.
C) decreasing returns to scale,because doubling inputs results in less than double the amount of output.
D) increasing returns to scale,because the isoquants are convex.
E) increasing returns to scale,because doubling inputs results in more than double the amount of output.

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  Figure 6.3 -The situation pictured in Figure 6.3 A) is one of increasing marginal returns to labor. B) is one of increasing marginal returns to capital. C) is not consistent with diminishing marginal product of labor or capital. D) shows constant returns to scale. E) shows diminishing marginal products of labor and capital. Figure 6.3 -The situation pictured in Figure 6.3


A) is one of increasing marginal returns to labor.
B) is one of increasing marginal returns to capital.
C) is not consistent with diminishing marginal product of labor or capital.
D) shows constant returns to scale.
E) shows diminishing marginal products of labor and capital.

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Joe owns a small coffee shop,and his production function is q = 3KL where q is total output in cups per hour,K is the number of coffee machines (capital) ,and L is the number of employees hired per hour (labor) .If Joe's capital is currently fixed at K=3 machines,what is his short-run production function?


A) q = 3L
B) q = 3L2
C) q = 9L
D) q = 3K2

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You are currently using three printing presses and five employees to print 100 sales manuals per hour.If the MRTS at this point is -0.5,then you would be willing to exchange __________ employees for two more printing presses in order to maintain current output.


A) zero
B) one
C) two
D) three

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When labor usage is at 12 units,output is 36 units.From this we may infer that


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

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A straight-line isoquant


A) is impossible.
B) would indicate that the firm could switch from one output to another costlessly.
C) would indicate that the firm could not switch from one output to another.
D) would indicate that capital and labor cannot be substituted for each other in production.
E) would indicate that capital and labor are perfect substitutes in production.

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E

When the average product is decreasing,marginal product


A) equals average product.
B) is increasing.
C) exceeds average product.
D) is decreasing.
E) is less than average product.

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You operate a car detailing business with a fixed amount of machinery (capital) ,but you have recently altered the number of workers that you employ per hour.Three employees can generate an average product of 4 cars per person in each hour,and five employees can generate an average product of 3 cars per person in each hour.What is the marginal product of labor as you increase the labor from three to five employees?


A) MP = 3 cars
B) MP = 1.5 cars
C) MP = 15 cars
D) MP = -1 cars

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Increasing returns to scale in production means


A) more than 10% as much of all inputs are required to increase output 10%.
B) less than twice as much of all inputs are required to double output.
C) more than twice as much of only one input is required to double output.
D) isoquants must be linear.

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B

A farmer uses M units of machinery and L hours of labor to produce C tons of corn,with the following production function C = L0.5M0.75.This production function exhibits


A) decreasing returns to scale for all output levels.
B) constant returns to scale for all output levels.
C) increasing returns to scale for all output levels.
D) no clear pattern of returns to scale.

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An isoquant


A) must be linear.
B) cannot have a negative slope.
C) is a curve that shows all the combinations of inputs that yield the same total output.
D) is a curve that shows the maximum total output as a function of the level of labor input.
E) is a curve that shows all possible output levels that can be produced at the same cost.

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