ECON 111 Lecture Notes - Lecture 13: Opportunity Cost, Production Function, W. M. Keck Observatory

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25 Jun 2016

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In this chapter and the ones that follow, we examine firm behaviour in more detail. This topic will give you a better understanding of what decisions lie behind the supply curve in a market. In addition, it will introduce you to a part of economics called industrial organization: the study of how firms" decisions regarding prices and quantities depend on the market conditions they face. (1) opportunity costs. The costs of producing an item must include all of the opportunity costs of inputs used in production. Total opportunity costs include both implicit and explicit costs. Explicit costs: input costs that require an outlay of money by the firm. Implicit costs: input costs that do not require an outlay of money by the firm. These include interest foregone, economic depreciation and owner"s time. (2) economic profit vs. accounting profit. Accountants focus on only explicit costs, while economists examine both explicit and implicit costs.

Related Questions

Question 3

We saw in class that the same good can fall in different categories (public/private/club/common resource) depending on circumstances. An example of such a good would be watching a movie at the theater. If a lot of people want to watch it, the movie is a _________. If very few people want to watch it (to the point where a room could not even be filled), the movie is likely to be a _______.

A. a common resource; a public good

B. a public good; a common resource

C. a private good; a club good

D. a club good; a private good

3 points

Question 4

Which of the following statements about the free-rider problem is not true?

A. Individuals have an incentive to free-ride when the good is not excludable.

B. The kinds of goods for which the free rider problem arises are common resources and public good.

C. Markets for goods for which there is a free-rider problem are inefficient because not enough of the good is produced.

D. Goods for which the free-rider problem exists tend to be over provided relative to what would be optimal.

4 points

Question 5

To achieve the efficient provision of public goods, the

A. market should be allowed to operate without government intervention.

B. government must limit the provision of those goods.

C. government must tax producers of those goods.

D. government must either provide those goods or subsidize their production.

3 points

Question 6

Which of the following statements about public goods is not true?

A. Because people cannot be excluded from their consumption and thus have no incentive to pay for them, public goods are underprovided by the market.

B. Efficiency requires that the government provide or fund (subsidize) the provision of all public goods.

C. Efficiency requires that the government provide or fund only the public goods that create more benefits than costs to society.

D. In reality, it is hard to provide public goods efficiently.

3 points

Question 7

Public goods must be provided by the government as the market on its own will fail to provide them. However, even with government provision it is very hard to achieve efficiency. Why?

A. In reality, it is very hard (if not impossible) to accurately estimate the benefits of providing a public good.

B. A. In reality, there can be overruns in the cost of providing the public good.

C. Government decisions about which public goods to provide can be influenced by lobbying by interest groups.

D. All of the above are true.

4 points

Question 8

Which of the following is not a common resource?

A. congested roads

B. clean water

C. wild life, which hunters want to hunt and others want to view.

D. a fireworks display.

3 points

Question 9

Many species of animals must be protected by law to keep them from extinction. Why are cows not one of these endangered species even though there is such a high demand for beef?

A. Cows reproduce at a high rate and have adapted well to their environment.

B. Public policies protect cows from predators and diseases.

C. Cows are privately owned (private goods), whereas many endangered species are owned by no one (common resources).

D.There is a natural ecological balance between the birth rate of cows and human consumption.

3 points

Question 10

Which of the following statements about common resources is not true?

A. Due to the free-rider problem, common resources tend to be overused.

B. Because there is rivalry in the consumption of common resources, whenever one person uses a common resource it is imposing a negative externality on others who might also want to use it.

C. There are no private solutions to the management of common resources.

D. One of the solutions that ensures that common resources are properly managed is their privatization.

3 points

Question 11

In our analysis of the firmâs behavior and goals, when we talk about cost, we include _________, and when we talk about profit, we mean ________.

A. Explicit costs only; economic profit

B. Implicit costs only; economic profit

C. Implicit costs only; accounting profit

D. Explicit + implicit costs; economic profit

E. Explicit + implicit costs; accounting profit

3 points

Question 12

One of the differences between explicit and implicit costs is that

A. explicit costs must be greater than implicit costs.

B. explicit costs do not require a direct monetary outlay, whereas implicit costs do.

C. implicit costs do not require a direct monetary outlay, whereas explicit costs do.

D. implicit costs must be greater than explicit costs.

3 points

Question 13

Which of the following is FALSE:

A. If accounting profit is zero, then economic profit is negative

B. Economic profit takes cost the opportunity cost of time and capital into account

C. Economic Profit = Accounting Profit + Implicit Cost

D. Economic Profit = Accounting Profit â Implicit Cost

3 points

Question 14

Which of the following is an example of an implicit cost?

(i) the owner of a firm forgoing an opportunity to earn a large salary working in Wall Street

(ii) interest paid on the firm's debt

(iii) rent paid by the firm to lease office space

A. (ii) and (iii) only

B. (i) and (iii) only

C. (i) only

D. (iii) only

3 points

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Please If you can highlight or mark the correct answer

Activity : 2 point(s)

If P = $8 and MC = $5 + 0. 2Q, the competitive firm's profit-maximizing level of output is:

0.2

Activity : 2 point(s)

In the long run, firms will exit a perfectly competitive industry if:

excess profits exceed zero.

excess profits are less than zero.

total profit equals zero.

excess profits equal zero.

Activity : 2 point(s)

In long-run equilibrium, monopoly prices are set at a level where:

price exceeds marginal revenue.

industry demand equals industry supply.

industry demand is less than industry supply.

price exceeds average revenue.

Activity : 1 point(s)

The kinked demand curve theory of oligopoly assumes that rival firms:

react to price increases.

react to price increases and decreases.

do not react to price changes.

react to price decreases.

Activity : 1 point(s)

In oligopoly markets, the market demand curve is:

upward sloping.

downward sloping.

horizontal.

vertical.

Activity : 2 point(s)

The level of competition in a given market tends to increase if:

minimum efficient scale of firms increases.

the number of substitutes increases.

significant barriers to exit are imposed.

the number of potential entrants decreases.

Activity : 2 point(s)

In the short run, the:

firm has complete flexibility with respect to input use.

availability of all inputs is fixed.

operating period is longer than the planning period.

availability of at least one input is fixed.

Activity : 1 point(s)

In both monopolistic competition and oligopoly markets:

there is easy entry and exit.

consumers perceive differences among the products of various competitors.

economic profits may be earned in the long run.

there are many sellers.

Activity : 1 point(s)

In oligopoly equilibrium:

MC = AC

MC > AC

MR = MC

MC < AC

Activity : 2 point(s)

A firm will earn normal profits when price:

equals average total cost.

equals average variable cost.

equals marginal cost.

exceeds minimum average total cost.

Activity : 2 point(s)

Economic costs include both explicit and implicit cost. When analyzing costs the next-best use of a given asset is called:

current cost.

replacement cost.

historical cost

opportunity cost.

Activity : 2 point(s)

In a perfectly competitive market:

sellers and buyers have perfect information.

entry and exit are difficult.

c. sellers produce similar, but not identical products.

each seller can affect the market price by changing output.

Activity : 2 point(s)

In competitive market equilibrium, the firm's:

MR = MC and P > AR

MR = MC and P > AC

AR = AC and MR > MC

P = MR = AR = AC = MC

Activity : 1 point(s)

A firm should increase advertising if the net marginal revenue derived is:

equal to the marginal cost of advertising.

greater than the marginal cost of advertising.

greater than zero.

less than the marginal cost of advertising.

Activity : 2 point(s)

For a firm in perfectly competitive market equilibrium:

a replacement cost.

an implicit cost.

an explicit cost.

an opportunity cost.

Activity : 1 point(s)

In a monopolistically competitive industry, firms:

offer products that are not perfect substitutes.

make decisions in light of expected reactions from other firms.

set price equal to marginal cost.

are price takers.

Activity : 2 point(s)

Fixed costs include:

variable labor expenses.

output-related energy costs.

output-related raw material costs.

variable interest costs for borrowed capital.

Activity : 2 point(s)

A monopolist maximizes profits by producing a level of output when:

P = AC

P > MC

P < MC

P = MC

Activity : 2 point(s)

The demand curve for a unique product without substitutes is:

upward sloping.

downward sloping.

horizontal.

vertical.

Activity : 2 point(s)

At the point of minimum Average Variable Cost:

historical cost.

incremental cost.

current cost.

Activity : 2 point(s)

In the decision process, management should ignore:

implicit costs.

historical costs.

sunk costs.

incremental costs.

Activity : 1 point(s)

At the profit maximizing level of output for a monopolist:

P = AR and AR = AC

P = MC and MR > MC

P = MR and AC = MC

P > MC and MR = MC

Activity : 2 point(s)

In perfectly competitive markets, profits are maximized when:

MC=AC

P>AC

MR=MC

MR=P

Activity : 2 point(s)

Graphically, competitive market supply is measured by the:

vertical difference of competitor demand curves.

vertical sum of competitor demand curves.

horizontal difference of competitor MC curves.

horizontal sum of competitor MC curves.

Activity : 2 point(s)

For a firm in perfectly competitive market equilibrium:

MR < AR

P > AC

P > MR

P = MC

Activity : 2 point(s)

In the long run, firms will offer supply at the point where P = MR = MC if:

MC is rising.

MC is falling.

MC is constant.

P > AC

Activity : 2 point(s)

The firm demand curve in a competitive market is:

upward sloping.

downward sloping.

horizontal.

vertical.

Activity : 1 point(s)

Monopolistic competition is characterized by:

homogeneous products.

barriers to entry and exit.

perfect dissemination of information.

few buyers and sellers.

Activity : 2 point(s)

Marginal cost equals:

average variable cost at its maximum point.

the change in total fixed cost divided by the change in quantity.

the change in total variable cost divided by the change in quantity.

total cost divided by quantity.

Activity : 2 point(s)

In the short run, a perfectly competitive firm will shut down and produce nothing if:

excess profits equal zero.

total cost exceeds total revenue.

total variable cost exceeds total revenue.

the market price falls below the minimum average total cost.

Activity : 2 point(s)

For a monopoly in equilibrium:

MR = MC

MC â¤ AC

MR â¤ AC

P â¥ AC

Activity : 2 point(s)

When profits are maximized in a competitive market, average cost is always:

rising.

falling.

constant.

none of these.

Activity : 2 point(s)

So long as P > AVC, the competitive firm's short-run supply curve is equal to:

AVC

none of these.

Activity : 1 point(s)

The four-firm concentration ratio will rise following:

a rise in imports.

a fall in imports.

a merger between the two largest firms in the industry.

small firm entry.

Activity : 2 point(s)

In oligopoly markets, the market demand curve is:

point on the short-run marginal cost curve.

short-run average cost of production.

long-run average cost of production.

point on the short-run average cost curve.

Activity : 2 point(s)

The following market cannot be described as perfectly competitive:

the unskilled labor market.

the milk market.

discount retailing.

the agricultural grain markets.

Activity : 2 point(s)

In the long run, the:

availability of at least one input is fixed.

firm's operating decisions are typically constrained by prior capital expenditures.

availability of all but one input is fixed.

firm has complete flexibility with respect to input use.

Activity : 1 point(s)

The industry supply curve is derived through the horizontal summation of firm:

average cost curves.

marginal revenue curves.

marginal cost curves.

demand curves.

Activity : 2 point(s)

Price and product quality competition tends to be vigorous when:

entry barriers are low.

potential entrants are few.

product quality information is scarce.

the number of active sellers is few.

Activity : 1 point(s)

A perfectly functioning cartel results in:

oligopoly.

monopoly.

perfect competition.

monopolistic competition.

Activity : 1 point(s)

When prices in monopolistically competitive markets exceed those in a perfectly competitive equilibrium, this difference is the cost of:

information.

market power.

inefficiency.

product differentiation.

Activity : 1 point(s)

In the short run, a monopolist will:

shut down if price equals average total cost.

shut down if price is less than average total cost.

shut down if price is less than average variable cost.

never shut down.

Activity : 2 point(s)

In the short run, a perfectly competitive firm will shut down and produce nothing if:

typically involve multiple units of output.

do not vary across decision alternatives.

come into play when judging the costs of adding a new product line, advertising campaign, production shift, or organization structure.

play a role in determining the optimal course of action.

Activity : 2 point(s)

At the point of minimum AVC:

MC is falling.

MC is constant.

MC is rising.

MC = AVC.

Activity : 2 point(s)

A monopsony is a market with:

many sellers.

one buyer.

many buyers.

one seller.

Activity : 1 point(s)

The demand curve faced by a firm in a monopolistically competitive industry is:

the downward sloping industry demand curve.

downward sloping.

more elastic than the perfectly competitive firm's demand curve.

horizontal.

Activity : 2 point(s)

Perfect competition always prevails in markets with:

few buyers and sellers.

many buyers and sellers.

an even balance of power between sellers and buyers.

a single buyer.

Activity : 2 point(s)

If the slope of a long-run total cost function decreases as output increases, the firm's underlying production function exhibits:

constant returns to scale.

decreasing returns to scale.

decreasing returns to a factor input.

increasing returns to scale.

Activity : 2 point(s)

Average cost declines as output expands in a production process with:

constant returns to scale.

decreasing returns to scale.

decreasing returns to a factor input.

increasing returns to scale.

Activity : 2 point(s)

If the productivity of variable factors is decreasing in the short-run:

marginal cost must increase as output increases.

average cost must decrease as output increases.

average cost must increase as output increases.

marginal cost must decrease as output increases.

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.

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ECON 111 Lecture Notes - Lecture 13: Opportunity Cost, Production Function, W. M. Keck Observatory

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