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Chapter 8: The Quest for Profit and the Invisible Hand Slide 2
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Copyright c 2004 by The McGraw-HillCompanies, Inc. All rights reserved.
What is rent?
Unearned economic profit
What is economic profit Returns above and beyond a fair return to capital,
labor and entrepreneurial skills
What is economic profit in a perfect free market economy? Zero
Markets cannot not drive rent to zero
Chapter 8: The Quest for Profit and the Invisible Hand Slide 3
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Three Types of Profit: 2
Economic Profit = total revenue – explicit costs – implicit costs (opportunity cost of the resources supplied by the firm’s owners) E.g. Take farmers total revenue, subtract total
costs, including money farmer could have made working elsewhere, money he could have made renting his land to someone else, etc.
Payments to factors of production (explicit and implicit) Payment to labor (human capital) = wage to land (natural capital) = rent (unearned income) to capitalists (finance and machinery/built capital)
= interest
Chapter 8: The Quest for Profit and the Invisible Hand Slide 4
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Copyright c 2004 by The McGraw-HillCompanies, Inc. All rights reserved.
Three Types of Profit: 3
Normal Profit = accounting profit – economic profit= fair payment to implicit costs
i.e. normal profit occurs when all factors of production, owned and unowned, earn their expected returnsE.g. Farmer earns as much farming as he
would working elsewhere and renting his land to a neighbor.
Chapter 8: The Quest for Profit and the Invisible Hand Slide 5
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Copyright c 2004 by The McGraw-HillCompanies, Inc. All rights reserved.
Two Functions of Price: 1
The rationing function of price To distribute scarce goods to those
consumers who value them most highlyBUT as economists determine value, you
can only value something if you have money.
Amerindians in the Amazon do not value the forest
Poor people do not value life saving medicine, e.g. eflornithine
There is no role for ethical, moral or social values
Chapter 8: The Quest for Profit and the Invisible Hand Slide 6
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Chapter 8: The Quest for Profit and the Invisible Hand Slide 7
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Two Functions of Price
The allocative function of priceTo direct resources away from
overcrowded markets and toward markets that are underserved
BUT, from the economists perspective, markets in life saving medicines for poor people are overcrowded, while markets for facial hair loss formulas for rich people are underserved.
Allocative function eliminate economic profit, but not rent
Chapter 8: The Quest for Profit and the Invisible Hand Slide 8
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The Invisible Hand Theory
Profits and Losses Would Ensure That supplies within a market would be distributed
efficiently (rationing function) Outputs will go to those consumers who value them the
most (i.e. who can pay the most)
Resources would be allocated across markets to produce the most efficient possible mix of goods and services (allocative function)
Inputs will go to those producers who can pay the most for them (i.e. who can create the highest valued products from them)
Markets balance possibility with desirability
Chapter 8: The Quest for Profit and the Invisible Hand Slide 9
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Responses to Profits and Losses
Markets with firms earning economic profits will attract resources.
Markets where firms are experiencing economic losses tend to lose resources.
Shifts in demand will raise or lower prices, hence profits, leading to entry or exit of firms, returning prices to their ‘fair’ level
Chapter 8: The Quest for Profit and the Invisible Hand Slide 10
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Copyright c 2004 by The McGraw-HillCompanies, Inc. All rights reserved.
The Invisible Hand Theory
In the long-run, in a competitive market, all firms will tend to earn zero economic profits. Consumer gets the good as cheaply as possible But remember, normal profits cover all the costs of
production Zero economic profits are the consequence of
price movements caused by the entry and exit of firms trying to maximize economic profits.
Chapter 8: The Quest for Profit and the Invisible Hand Slide 11
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Copyright c 2004 by The McGraw-HillCompanies, Inc. All rights reserved.
Two Attractive Features
The market outcome is efficient in the long run.P = MC= min ATC
The market is fair.The price the buyers pay is no higher than
the cost incurred by sellers.The cost includes a normal profit.Normal profits include payments to all
factors of production, including a CEO making 100 million a year.
Chapter 8: The Quest for Profit and the Invisible Hand Slide 12
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Copyright c 2004 by The McGraw-HillCompanies, Inc. All rights reserved.
Free Entry and Exit
Free entry and exit must exist for the allocative function of price to operate Barriers to entry can be caused by legal
constraints and unique market characteristics Barrier to entry exists when only fixed quantity of
resource is available Patents and copyrights
Medicine prices in US and Canada Textbook prices in US and Europe
Compatibility between products Firm size Quotas
Chapter 8: The Quest for Profit and the Invisible Hand Slide 13
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Copyright c 2004 by The McGraw-HillCompanies, Inc. All rights reserved.
Economic RentVersus Economic Profit
Economic RentThat part of a payment for a factor of
production that exceeds the owner’s reservation price
Think about land. Market forces will not push economic rent
to zero because inputs cannot be replicated easily
But taxes can push it to zero
Chapter 8: The Quest for Profit and the Invisible Hand Slide 14
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Economic RentVersus Economic Profit
Textbook example: ignores injustice of rent
AssumeA community with 100 restaurants99 restaurants employ chefs with normal
ability for $30,000/yr (the same amount they could earn elsewhere)
The 100th restaurant employs a talented chef and customers are willing to pay 50% more for their meals
Chapter 8: The Quest for Profit and the Invisible Hand Slide 15
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Economic RentVersus Economic Profit
AssumeTR at the each of the 99 restaurants is
$300,000, which yields a normal profitTR at the 100th restaurant is $450,000
(50% more)
How much will the good chef earn?Reservation price = $30,000 = opportunity
cost
Chapter 8: The Quest for Profit and the Invisible Hand Slide 16
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Copyright c 2004 by The McGraw-HillCompanies, Inc. All rights reserved.
The Invisible Hand in Action
The Invisible Hand in Antipoverty Programs, e.g. the green revolutionHow will an irrigation project affect the
incomes of poor farmers who rent land?
Chapter 8: The Quest for Profit and the Invisible Hand Slide 17
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The Invisible Hand in Action
AssumeAn unskilled worker has two job choices
Textile workerRenting land to grow rice
A state funded irrigation program doubles output of grain without changing the market price.
What happens to income of landless?
What happens to price of land? Who benefits?
Chapter 8: The Quest for Profit and the Invisible Hand Slide 18
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Copyright c 2004 by The McGraw-HillCompanies, Inc. All rights reserved.
The Invisible Hand in Action
What happens when the farm bill awards $288 billion in subsidies to agro-industry?
What’s the impact on new farmers?
What happens when the government builds light rail, parks, libraries, etc.?
Chapter 8: The Quest for Profit and the Invisible Hand Slide 19
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What else generates rent?
Renewable resources
Non-renewable resources
Money
Air waves
Patented information and other monopolies
Information in general
Other?
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Sustainable Yield Curve
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Sustainable harvests and effort
What is the relationship to scale?
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No-renewable resources
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No-renewable resources
What’s left out of this simplified model? What’s the opportunity cost of producing
oil today? What’s happening to the price of oil?
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Scarcity Rent
Oil Stocks
P
Marginal cost=supply
MC + rent (MUC)
S ca rc ity re n t
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How do we decide on scarcity rent/royalty?
Per barrel royalty? Percentage of price? Cap and auction extraction rights?
Are we missing any other type of rent?
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Rent Capture II: Waste Absorption
Oil Stocks
P
Marginal cost=supply
MC + rent (MUC)
MC+MUC+MEC
S ca rc ity re n t
P o llu tio n re n t
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Financial Capital: Interest and Seignorage
What is seignorage? Reserve requirements Who should get it?
Ithaca hours
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Monopoly rent
Pri
ce (
$/u
nit
of
ou
tpu
t)
Quantity (units/week)
6
D
3
12 24
Marginal Cost
2
4
MR
8
Observations• If P = $3 & Q = 12 MR < MC
and output should be reduced
• Profits are maximized at 8 units where MR = MC
• P = $4 where quantity demanded = quantity supplied
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2
4
MR
8
• Because MR < P, the monopoly produces less than the socially optimal amount
• The deadweight loss of the monopoly to society = (1/2)($2/unit)(4units/wk) = $4/wk.
Deadweight loss
The Demand and Marginal Cost Curves for a Monopolist
Pri
ce (
$/u
nit
of
ou
tpu
t)
Quantity (units/week)
D
12
6
24
Why the Invisible Hand Breaks Down Under Monopoly
3
Marginal cost