ECON 2106 Lecture Notes - Lecture 7: Average Variable Cost, Average Cost, Fixed Cost

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coralguinea-pig410

18 Apr 2018

School

University of Georgia

Department

Economics

Course

ECON 2106

Professor

McWhite

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Document Summary

Chapter 8: business costs and production: how are profits and losses calculated, calculating profit and loss. Profit results when total revenue is higher than total cost: note: revenue is effectively income generated from producing good. Loss results when total revenue is less than total cost. Total revenue amount a firm receives from the sale of goods from the sale of goods and services. Total cost is the amount a firm spends to produce or sell goods and services: explicit costs vs implicit cost. Economists go one step further than accountants in deciding profit instead of simply income minus expenses, economists factor in opportunity cost (i. e. implicit costs) Explicit costs tangible, out of pocket expenses. The economic cost of college is the same formula, with an additional subtraction from what you could be doing instead of college (say work, a job for.

Related Questions

If a monopolist or a perfectly competitive firm is producing at a break-even point, then:
i. average revenue is equal to average variable cost
ii. average revenue is equal to average total cost
iii. total revenue is equal to total variable cost
iv. total revenue is equal to total cost

iii

i and iii

ii and iv

A natural monopoly, such as a local electricity provider, is the result of:
i. a firm owning or controlling a key input used in the production process
ii. economies of scale existing over a wide range of output
iii. long-run average total costs declining continuously as output increases
iv. long-run total costs declining continuously as output increases

What do economies of scale, the exclusive ownership of essential raw materials used in the production process, and patents have in common?

they are all barriers to entry

they all help explain why a monopolists demand and marginal revenue curves are identical

they must all be present before a monopolist may practice price discrimination

they all help explain why a firms short run average total cost curve is U-shaped

#10

The principle that a firm should produce up to the point where the marginal revenue (MR) from the sale of an extra unit of output is equal to the marginal cost (MC) of producing the extra unit applies:

to both perfectly competitive firms and monopolies

only to monopolies

only to perfectly competitive firms

only to firms that can employ discriminatory pricing strategies

#11

A monopoly is producing a level of output such that marginal revenue is equal to marginal cost. The firm is selling its output at a price of $8 per unit and is incurring average variable costs of $5 per unit and average total costs of $10 per unit. Given this information, it may be concluded that the firm:

is operating at maximum total profit

is operating at a loss that could be reduced by shutting down

is operating at a profit that could be increased by producing more output

is operating at a loss that is less than the loss incurred by shutting down

#12

Suppose the demand function for a profit maximizing monopolists good is P = 120 - 0.2Q, its total cost function is TC = 40 + 4Q + Q2, and its marginal cost function is MC = 4 + 2Q. If the firm uses a uniform pricing strategy, then rounded to the nearest unit of output and to the nearest dollar the firm will:

produce 48 units of output, charge a price of $110, and earn a total profit of $5280

produce 48 units of output, charge a price of $110, and earn a total profit of $2744

produce 52 units of output, charge a price of $134, and earn a total profit of $5322

produce 52 units of output, charge a price of $134, and earn a total profit of $4016

magentabuffalo597

Paul's accountant will most likely includes which of the followingcosts on his financial statements?Paul owns a car wash.
A) dividends Paulâs money was earning in the stock market beforePaul sold his stock and bought a car wash
B) All of the given answers are correct.
C) the cost of cleaning supplies
D) wages Paul could earn washing windows
2.
Farmer Jack decided to use his land to grow corn rather than use itto grow vegetables, the amount of money that he gave up by notgrowing vegetable is
A) forgone accounting profit.
B) an explicit cost.
C) an implicit cost.
D) an accounting cost
3.
Intel sold 2 million chips at a price of $10 per chip. For lastyear, the firmâs
A) explicit costs amounted to $20 million.
B) accounting profit amounted to $20 million.
C) economic profit amounted to $20 million.
D) total revenue amounted to $20 million.
4.
Mandy earned $40,000 per year in her Sales Manager job. She quither job in order to start her own catering business. To buy thenecessary equipment, she withdrew $20,000 from her savings, (whichpaid 3 percent interest) and borrowed $30,000 from her uncle, whomshe pays 3 percent interest per year. Last year she paid $25,000for ingredients and had revenue of $60,000. She asked Louis theaccountant and Greg the economist to calculate her profit forher.
A) Louis says her profit is $35,000 and Greg says she lost$5,000.
B) Louis says her profit is $34,100 and Greg says she lost$6,500.
C) Louis says her profit is $33,500 and Greg says her profit is33,500.
D) Louis says her profit is $34,100 and Greg says her profit is$6,500.
5.
In the short run
A) The firm can vary the size of its factory, but not the number ofworkers it employs.
B) The firm can vary neither the size of its factory nor the numberof workers it employs.
C) The firm can vary both the size of its factory and the number ofworkers it employs.
D) The firm can vary the number of workers it employs, but not thesize of its factory.
6.
If a firmâs production function is shown on a graph and the numberof workers hired is the only variable input, then

A) total cost is measured on the horizontal axis and the number ofworkers is measured on the vertical axis.
B) the number of workers is measured on the horizontal axis and thequantity of output is measured on the vertical axis.
C) the number of workers is measured on the horizontal axis andvariable cost is measured on the vertical axis.
D) the number of workers is measured on the horizontal axis andprofit is measured on the vertical axis.
7.
marginal cost is
A) The amount by which total cost rises when the firm produces oneadditional unit of output.
B) is calculated the same way as average cost
C) total cost minus fixed cost.
D) The amount of total cost divided by units of output.
8.
If a firm is at the efficient scale of output it means that thequantity of output is such that it
A) maximizes marginal product.
B) maximizes profit.
C) minimizes average total cost(ATC) and average variable cost isequal to ATC
D) minimizes average total cost (ATC)and marginal cost is equal tothe ATC
9.
When marginal cost is less than average total cost,
A) average total cost is rising.
B) average variable cost must be falling.
C) average total cost is falling.
D) marginal cost must be falling.
10.
Regarding a the firm's cost of production,which of the followingstatements is false?
A) Marginal cost is independent of fixed costs.
B) In the long run, there are no fixed costs.
C) Diminishing marginal product explains increasing marginalcost.
D) Economies of scale is a short-run concept.

ivoryhorse290

1. When economists speak of "marginal," they mean
a. Opportunity.
b. Scarcity.
c. Incremental.
d. Unimportant.

2. Managers undertake an investment only if
a. Marginal benefits of the investment are greater than zero.
b. Marginal costs of the investment are greater than marginal benefits of the investment.
c. Marginal benefits are greater than marginal costs.
d. Investment decisions do not depend on marginal analysis.

3. A firm produces 500 units per week. It hires 20 full-time workers (40 hours/week) at an hourly wage of $15. Raw materials are ordered weekly, and they cost $10 for every unit produced. The weekly cost of the rent payment for the factory is $2,250. How do the overall costs break down?
a. Total variable cost is $17,000; total fixed cost is $2,250; total cost is $19,250.
b. Total variable cost is $12,000; total fixed cost is $7,250; total cost is $19,250.
c. Total variable cost is $5,000; total fixed cost is $14,250; total cost is $19,250.
d. Total variable cost is $5,000; total fixed cost is $2,250; total cost is $7,250.

4. Total costs increase from $1,500 to $1,800 when a firm increases output from 40 to 50 units. Which of the following is true if marginal cost is constant?
a. FC = $100
b. FC = $200
c. FC = $300
d. FC = $400

5. A manager of a clothing firm is deciding whether to add another factory in addition to one already in production. The manager would compare
a. The total benefits gained from the two factories to the total costs of running the two factories.
b. The incremental benefit expected from the second factory to the total costs of running the two factories.
c. The incremental benefit expected from the second factory to the cost of the second factory.
d. The total benefits gained from the two factories to the incremental costs of running the two factories.

6. A firm is thinking of hiring an additional worker to their organization who they believe can increase total productivity by 100 units a week. The cost of hiring him or her is $1,500 per week. If the price of each unit is $12,
a. The MR of hiring the worker is $1,500.
b. The MC of hiring the worker is $1,200.
c. The firm should not hire the worker since MB < MC.
d. All the above

7. A retailer has to pay $9 per hour to hire 13 workers. If the retailer only needs to hire 12 workers, a wage rate of $7 per hour is sufficient.
What is the marginal cost of the 13th worker?
a. $117
b. $9
c. $33
d. $84

8. If a firm's average cost is rising, then
a. Marginal cost is less than average cost.
b. Marginal cost is rising.
c. Marginal cost is greater than average cost.
d. The firm is making an economic profit.

9. After the first week of his MBA Managerial Economics class, one of your pharmaceutical sales representatives accuses you of committing the sunk-cost fallacy by refusing to allow him to reduce price to make what he considers to be a really tough sale. Which of the following suggests the sales representative may be right?
a. Most of the costs of drug development are sunk, not fixed.
b. Sales representatives are paid a sales commission on revenue, so they don't care about the costs of drug development.
c. Sales representatives don't worry that a low price today may make it more difficult for the company's other sales representatives to charge higher prices to their customers, tomorrow.
d. Sales representatives think only about one thing, sales.

10. A company is producing 15,000 units. At this output level, marginal revenue is $22, and the marginal cost is $18. The firm sells each unit for $48 and average total cost is $40.
What can we conclude from this information?
a. The company is making a loss.
b. The company needs to cut production.
c. The company needs to increase production.
d. Not enough information is provided.

ECON 2106 Lecture Notes - Lecture 7: Average Variable Cost, Average Cost, Fixed Cost

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