ECON 1001 Lecture Notes - Lecture 7: Diminishing Returns, Marginal Cost

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rubyllama377

27 Mar 2018

School

Department

Economics

Course

ECON 1001

Professor

Erhardt

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Document Summary

Ans: when only a variable input is increased, and all other inputs are held constant the resultant increase in output is called returns to a factor. Indivisibility of factors: factors of production are indivisible. The minimum size of the fixed factor may be greater than its actual utilization in the initial stage. With increased employment of the variable factor the fixed factor starts getting utilized efficiently. Effective and efficient utilization of the fixed factor leads to increase in total output at an increasing rate. Law of increasing return will operate so far the optimum combination is not reached. Specialization: the second reason is that with larger scale we can introduce more division of labor or specialization. A greater degree of division of labor raises productivity of the labor and other factors. Fuller utilization of the fixed factors: in the initial stages fixed factor such as machine remains underutilized. Its fuller utilization calls for greater application of the variable factor.

Related Questions

The law of eventually diminishing marginal returns: (Points : 1)

a. states that each and every increase in the amount of the variable factor employed in the production process will yield diminishing marginal returns.
b. is a mathematical theorem that can be logically proved or disproved
c. is the rate at which one input may be substituted for another input in the production process
d. None of the above

The marginal product is defined as: (Points : 1)

a. the ratio of total output to the amount of the variable input used in producing the output
b. the incremental change in total output that can be produced by the use of one more unit of the variable input in the production process
c. the percentage change in output resulting from a given percentage change in the amount of the variable input X employed in the production process with Y
d. None of the above

The rate at which one input X may be substituted for another input Y in a production process, while total output remains constant, is: (Points : 1)

a. the slope of the isoquant curve
b. the marginal rate of technical substitution

c. equal to MPx/MPy

d. all of the above
e. none of the above

Marginal revenue product is: (Points : 1)

a. defined as the amount that an additional unit of the variable input adds to the total revenue
b. equal to the marginal factor cost of the variable factor times the marginal revenue resulting from the increase in output obtained
c. equal to the marginal product of the variable factor times the marginal product resulting from the increase in output obtained
d. a and b
e. a and c

Marginal factor cost is defined as the amount that an additional unit of the variable unit of the variable input adds to ____________. (Points : 1)

a. marginal cost
b. variable cost
c. marginal rate of technical substitution
d. total cost
e. none of the above

In the Cobb-Douglas production function Q=aL^?1.K^?2 ______________. (Points : 1)

a. the marginal product of labor (L) is equal to ?1
b. the average product of labor (L) is equal to ?2
c. if the amount of labor input (L) is increased by 1 percent, then output will increase by ?1 percent
d. a and b
e. a and c

The short-run cost function is: (Points : 1)

a. where all inputs to the production process are available
b. relevant to decisions in which one or more inputs to the production process are fixed
c. not relevant to optimal pricing and production output decision facilities
d. crucial in making optimal investment decisions in new production facilities
e. none of the above

Theoretically, in a long-run cost function: (Points : 1)

a. all inputs are fixed
b. all inputs are considered variable
c. some inputs are always fixed
d. capital and labor are always combined in fixed proportions

A linear total cost function implies that: (Points : 1)

a. marginal costs are constant as output increases
b. average total costs are continually decreasing as output increases
c. a and b
d. none of the above

Assume that the product price is $2 per unit, the price of thefactor of production is $40 per unit, and 8 units are being hired.Profit can be maximized by hiring _______ unit(s).
Answer
A. 2 more
B. 1 more
C. 1 fewer
D. 3 fewer

If a firm is using a factor of production from a perfectlycompetitive market such that MFC > MRP, then profit:
Answer
A. can be increased by decreasing the factor price.
B. is maximized.
C. can be increased by using more of the factor.
D. can be increased by using less of the factor.

The amount a factor adds to a firm's total cost per period iscalled:
Answer
A. marginal factor cost.
B. marginal fixed cost.
C. marginal cost.
D. MFR .

Which of the following statements is true?
Answer
A. Marginal product is the change in total revenue divided by a oneunit change in a factor.
B. Marginal factor cost is equal to average total cost.
C. Marginal revenue product is marginal product times marginalrevenue.
D. Marginal revenue is the change in total output divided by thechange in output

Given an increase in the demand for labor, the more the supply oflabor rises:
Answer
A. the fewer the number of workers employed.
B. the greater the increase in wages.
C. the greater the increase in workers employed at the originalwage rate.
D. the less the increase in wages and the greater the number ofworkers employed.

Which of the following statements is true?
Answer
A. The market demand curve for labor is found by adding the supplycurves for labor of individual firms.
B. The market demand for labor will change as a result of a changein the use of a complementary factor or a substitute factor.
C. The market demand curve for labor is vertical at theprofit-maximizing wage.
D. A firm's demand for labor is the upward-sloping portion of theMRP curve for labor.

If marginal product is _______ , marginal revenue product must be_______ .
Answer
A. rising; falling
B. rising; zero
C. falling; rising
D. falling; falling

If a firm is using a factor of production from a perfectlycompetitive market such that MFC < MRP, then profit:
Answer
A. can be increased by using more of the factor.
B. can be increased by increasing the factor price.
C. is maximized.
D. can be increased by using less of the factor.

Which of the following statements is true?
Answer
A. Leisure is a normal good.
B. The demand for leisure is perfectly inelastic.
C. All other things unchanged, an increase in income will decreasethe demand for leisure.
D. Leisure is an inferior good.

According to estimates presented in the textbook, which of the following factors made the smallest contribution to U.S. growth between 1928 and 1997?

A) Technology.
B) Human capital.
C) Physical capital.
D) Labor.

According to economist Hernando DeSoto, the lack of formal property rights in many poor countries limits economic growth because informal property rights:

A) lead to excessive investment in physical, social, and human capital.
B) limit the amount that businesses and households can borrow.
C) result in excessive government regulation.
D) decrease the labor force participation rate.

The theory of convergence depends on the assumption that:

A) population growth falls to replacement levels in all nations.
B) factors of production are mobile across borders.
C) technological advancement slows.
D) production functions have constant returns to scale.

The surge in foreign direct investment experienced by China and India in the early 2000s can best be explained by:

A) their higher marginal productivity of capital, which leads to lower production costs.
B) their lower marginal productivity of capital, which leads to lower production costs.
C) the limits they impose on factor mobility.
D) technological agglomeration.

The idea behind Say's Law is that people work because:

A) they like to work.
B) they want to buy things.
C) they want to accumulate wealth.
D) work gives them social status.

People's knowledge is a type of capital, called human capital.

A) True
B) False

The law of diminishing marginal productivity applies whenever:

A) output is increased.
B) all inputs are increased.
C) only one input is increased.
D) decreasing returns to scale are present.

13.

The theory of convergence argues that poor nations should, if they pursue the right policies,

A) grow at the same rate as rich nations.
B) grow faster than rich nations.
C) develop the same social-welfare structures as rich nations.
D) stop their exploitation by the rich nations.

14.

If increasing returns to scale exist, then an increase in output of exactly 3 percent is most likely to be produced by:

A) a decrease in all inputs of 3 percent.
B) an increase in all inputs of less than 3 percent.
C) an increase in all inputs of 3 percent.
D) an increase in all inputs of more than 3 percent.

15.

The production function is best represented in the following form:

A) Output = A.
B) Output = f(Labor, Capital, Land).
C) Output = A%u2022f(Labor, Capital, Land).
D) Output = [A%u2022f(Labor, Capital, Land)]^b.

16.

The effect of economic growth generally has been to make:

A) the poor poorer and the rich richer.
B) the poor richer and the rich poorer.
C) all income levels richer.
D) the rich richer but not affect the poor.

Scale economies describe what happens to output when:

A) one input changes.
B) all inputs change by the same percentage.
C) technology changes.
D) institutions change.

ECON 1001 Lecture Notes - Lecture 7: Diminishing Returns, Marginal Cost

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