ECON 10010 Lecture Notes - Lecture 11: Average Cost, Marginal Product, Marginal Cost

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periwinklechimpanzee451

7 Nov 2017

School

Department

Economics

Course

ECON 10010

Professor

Kirk Doran

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Document Summary

Lecture: costs come from factors of production, how do i produce this good, taking input (factors of production, establishing production technology. Costs can be calculated by thinking about production. The marginal or extra product of the current workers is less than the marginal product of the previous worker as you add more workers: as we add more input, we get more output. Input is variable: has a set variable cost. Quantity of output as a function of quantity of input. Q of input can be changed into total cost: re-scale the axis by 10. Q of input: the law of diminishing marginal product implies a specific shape for the curve of output as a function of cost. Graph: cost as a function of quantity of output. It doesn"t start at 0 because of a fixed cost in the production floor.

Related Questions

MULTIPLE CHOICE.

1) Which of the following is true of the typical relationship between marginal product (MP) and average product (AP)?

A) The AP curve intersects the MP curve at minimum MP.

B) If MP is less than AP, then AP is increasing.

C) If MP is greater than AP, then AP is falling.

D) The MP curve intersects the AP curve at maximum AP.

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.

2) If, for a particular short-run production, we observe that marginal product is decreasing we can conclude that average product is decreasing as well.

MULTIPLE CHOICE.

3) An implicit cost is defined as:

A) the amount by which the money spent on an input to production exceeds its opportunity cost.

B) the difference between an input's explicit cost and its actual cost.

C) the opportunity cost of using a resource that is not explicitly paid out by the firm.

D) the amount by which economic profit exceeds accounting profit.

MULTIPLE CHOICE.

4) The amount of output a firm can produce with a given quantity of fixed and variable inputs is called:

A) total fixed product.

B) average variable product.

C) marginal product.

D) total product.

5) Which of the following statements is true of the relationship among the average cost functions?

A) AFC = ATC + AVC

B) ATC = AFC - AVC
C) AVC = AFC + ATC

D) AFC = ATC - AVC

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.

6) A firm's production function is the relationship between the factors of production and the resulting outputs of the production process.

MULTIPLE CHOICE.

Scenario 2:
Output (Q): 0 1 2 3 4 5 6

Total Cost (TC): $24 $33 $41 $48 $54 $61 $69

7) Refer to Scenario 2. Diminishing marginal returns starts to occur between units:

A) 2 and 3.

B) 3 and 4.

C) 4 and 5.

D) 5 and 6.

8) Which of the following would be classified as a short-run decision?

A) trucking firm's decision to move to a smaller facility.

B) A firm's decision to decrease the amount of electricity used in day-to-day operations by encouraging employees to adopt conservation strategies, e.g., shut off lights when leaving a room.

C) A university's decision to add a new residence hall.

D) A restaurant's decision to increase the number of patrons it can accommodate by adding on a new dining room.

9) Economic profit is equal to the difference between: 9)

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.

10) At the point where a firm incurs diminishing marginal returns, total product will begin to decline.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

11) In the context of a production function, the remote order takers in the fast food industry would be classified as:

A) a fixed input.

B) a marginal input.

C) an inframarginal input.

D) a variable input.

Scenario 3:
Total Product (Q): 0 1 2 3 4 5 6

Total Cost (TC): $50 $80 $105 $125 $155 $195 $250

12.

13.

increase; lower

decrease; lower

increase; higher

decrease; higher

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.

14.

15.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

16) A labor-intensive method of production is one that:
A) combines a small but sophisticated labor force with a large amount of capital.

B) requires employees to work harder than they would in other occupations.
C) relies on large quantities of labor and smaller quantities of capital equipment. D) relies exclusively on labor.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

17) Assume a firm produces 500 units of a good by using two inputs, capital and labor, whose per unit prices are $10 and $4. Assume also that the marginal physical product of the last unit of capital is 30 and the marginal physical product of the last unit of labor is 10. To minimize costs this firm should employ:

A) more labor and less capital. B) more capital and less labor.
C) the existing combination of resources. D) both more labor and more capital.

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.

18) All else constant, a decrease in the per unit price of labor would create an incentive for a firm manager to substitute labor for capital in the firm's production process.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

19) All else constant, as the price of petroleum increases relative to the prices of other inputs to the production process, in their effort to minimize their total costs of production, we can expect to see firms employ:

A) the same amount of petroleum since there are no substitutes for petroleum. B) less petroleum and more of the other inputs to production.
C) less of each of the inputs of production.

D) more petroleum and less of the other inputs to production.

coffeewoodchuck827

Redstone Clayworks Inc. is located in Sedona, Arizona, and manufactures clay fire pits for patios. They are one of about two dozen firms around the world that manufacture and sell clay fire pits for retailers such as Home Depot, Lowe's, Front Gate, and other upscale home product chains. There is virtually no product differentiation. A clay fire pit is a clay fire pit.

The spreadsheet below gives some of Redstone's production cost data.

Assume that the world market demand and supply curves for clay fire pots intersect at $190 per unit.

Q	TC	TFC	TVC	AFC	AVC	ATC	SMC	TR	MR	Profit	Average	Profit
											Profit	Margin
0	7000	7000	NIL	NIL	NIL	NIL	NIL	0	NIL	-7000	NIL	nil
100	14000	7000	7000	70	70	140	70	19000	190	5000	50	26%
200	23000	7000	16000	35	80	115	90	38000	190	15000	75	39%
300	32000	7000	25000	23.33	83.33	106.67	90	57000	190	25000	83.33	44%
400	43000	7000	36000	17.5	90	107.5	110	76000	190	33000	82.5	43%
500	52000	7000	45000	14	90	104	90	95000	190	43000	86	45%
600	74000	7000	67000	11.67	111.67	123.33	220	114000	190	40000	66.67	35%
700	97000	7000	90000	10	128.57	138.57	230	133000	190	36000	51.43	27%
800	111000	7000	104000	8.75	130	138.75	140	152000	190	41000	51.25	27%
900	132000	7000	125000	7.78	138.89	146.67	210	171000	190	39000	43.33	23%
1000	152000	7000	145000	7	145	152	200	190000	190	38000	38	20%

AFC = total fixed cost/total output.

AVC = total variable cost/total output.

ATC = total cost/total output.

MC = change in total cost/change in output.

Total revenue = price * quantity. And given that the demand and supply intersect at $190, which implies that the equilibrium price is $190 because the point where the demand equals the supply determines the price.

MR = change in total revenue/change in output.

Profit = total revenue - total cost.

Average profit = total profit/total output.

Profit margin = total profit/total revenue*100 or (revenue - cost)/revenue*100.

Question:

What level of output should the manager of Redstone choose to produce? Explain your choice in 50-100 words.

limeskunk177

The spreadsheet below gives some of Redstone's production cost data.

Assume that the world market demand and supply curves for clay fire pots intersect at $190 per unit.

Q	TC	TFC	TVC	AFC	AVC	ATC	SMC	TR	MR	Profit	Average	Profit
											Profit	Margin
0	7000	7000	NIL	NIL	NIL	NIL	NIL	0	NIL	-7000	NIL	nil
100	14000	7000	7000	70	70	140	70	19000	190	5000	50	26%
200	23000	7000	16000	35	80	115	90	38000	190	15000	75	39%
300	32000	7000	25000	23.33	83.33	106.67	90	57000	190	25000	83.33	44%
400	43000	7000	36000	17.5	90	107.5	110	76000	190	33000	82.5	43%
500	52000	7000	45000	14	90	104	90	95000	190	43000	86	45%
600	74000	7000	67000	11.67	111.67	123.33	220	114000	190	40000	66.67	35%
700	97000	7000	90000	10	128.57	138.57	230	133000	190	36000	51.43	27%
800	111000	7000	104000	8.75	130	138.75	140	152000	190	41000	51.25	27%
900	132000	7000	125000	7.78	138.89	146.67	210	171000	190	39000	43.33	23%
1000	152000	7000	145000	7	145	152	200	190000	190	38000	38	20%

AFC = total fixed cost/total output.

AVC = total variable cost/total output.

ATC = total cost/total output.

MC = change in total cost/change in output.

MR = change in total revenue/change in output.

Profit = total revenue - total cost.

Average profit = total profit/total output.

Profit margin = total profit/total revenue*100 or (revenue - cost)/revenue*100.

Question:

a. What level of output should the manager of Redstone choose to produce? Explain your choice in 50-100 words.

b. Make a copy of your spreadsheet and triple the fixed costs to 21,000. How does this change your answer to question a? Explain your result in 50-100 words.

whitehound166

ECON 10010 Lecture Notes - Lecture 11: Average Cost, Marginal Product, Marginal Cost

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