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Transcript of 01 Limits, Alternatives, and Choices McGraw-Hill/Irwin Copyright © 2012 by The McGraw-Hill...
![Page 1: 01 Limits, Alternatives, and Choices McGraw-Hill/Irwin Copyright © 2012 by The McGraw-Hill Companies, Inc. All rights reserved.](https://reader035.fdocuments.us/reader035/viewer/2022062716/56649e025503460f94aecd17/html5/thumbnails/1.jpg)
01
Limits, Alternatives, and Choices
McGraw-Hill/Irwin Copyright © 2012 by The McGraw-Hill Companies, Inc. All rights reserved.
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LO1
Introduction
• Economics defined:
• Economic wants exceed productive capacity.
• A social science concerned with making optimal choices under conditions of scarcity.
1-2
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LO1
The Economic Perspective
• Thinking like an economist
• Key features:
• Scarcity and choice
• Purposeful behavior
• Marginal analysis
1-3
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LO1
Scarcity and Choice
• Resources are scarce
• Choices must be made
• Opportunity cost
• There’s no free lunch
1-4
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LO1
Purposeful Behavior
• Rational self-interest
• Individuals and utility
• Firms and profit
• Desired outcomes
1-5
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LO1
Marginal Analysis
• Marginal benefit
• Marginal cost
• Marginal means change or “extra”
• Comparison between marginal benefit and marginal cost
1-6
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LO2
Theories, Principles, and Models
• The scientific method:
• Economic principles
• Generalizations
• Other-things-equal assumption
• Graphical expression
Observe Formulate a hypothesis Test the hypothesis
Accept, reject, or modify the hypothesis
Continue to test the hypothesis, if necessary
1-7
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LO3
Microeconomics and Macroeconomics
• Microeconomics
• Decision making by individual units
• Macroeconomics
• Aggregate
1-8
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LO3
Positive and Normative Economics
• Positive economics
• Deals with economic facts
• Normative economics
• A subjective perspective of the economy
1-9
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LO4
Individual’s Economizing Problem
• Limited income
• Unlimited wants
• A budget line
• Attainable and unattainable options
• Tradeoffs and opportunity costs
• Make the best choice possible
• Change in income1-10
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LO4
Individual’s Economizing Problem
6543210
02468
1012
DVDs$20
Books$10
$120 Budget 12
10
8
6
4
2
02 4 6 8 10 12 14Quantity of Paperback Books
Qu
anti
ty o
f D
VD
s
Income = $120
Pdvd = $20= 6
Income = $120
Pb = $10= 12
Attainable
Unattainable
1-11
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LO4
Global Perspective
1-12
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Almost half the world — over three billion people — live on less than $2.50 a day.
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LO4
Society’s Economizing Problem
• Scarce resources (Factors of Production)
• Land
• Labor
• Capital
• Entrepreneurial Ability
1-14
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LO4
Society’s Economizing Problem
• Entrepreneurial ability
• Takes initiative
• Makes decisions
• Innovates
• Takes risk
1-15
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Copyright 2008 The McGraw-Hill Companies1-16
Chapter ObjectivesEconomic PerspectiveTheories Principles and ModelsMacro and MicroeconomicsIndividual’s Economizing ProblemSociety’s Economizing ProblemProduction Possibilities ModelUnemployment, Growth, and the FutureLast Word
Key Terms
End Show
The Market System
• Who Will Get the Output?
• How Will the System Accommodate Change?
• How Will the System Promote Progress?–Technological Advance–Creative Destruction–Capital Accumulation
Five Fundamental Questions
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Copyright 2008 The McGraw-Hill Companies1-17
Chapter ObjectivesEconomic PerspectiveTheories Principles and ModelsMacro and MicroeconomicsIndividual’s Economizing ProblemSociety’s Economizing ProblemProduction Possibilities ModelUnemployment, Growth, and the FutureLast Word
Key Terms
End Show
The Market System
• 1776 Wealth of Nations by Adam Smith–Efficiency–Incentives–Freedom
The “Invisible Hand”
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Copyright 2008 The McGraw-Hill Companies1-18
Chapter ObjectivesEconomic PerspectiveTheories Principles and ModelsMacro and MicroeconomicsIndividual’s Economizing ProblemSociety’s Economizing ProblemProduction Possibilities ModelUnemployment, Growth, and the FutureLast Word
Key Terms
End Show
The Market System
• Two Insurmountable Problems–The Coordination
Problem–The Incentive Problem
Demise of Command Systems
USSR
Yugoslavia
East Germany
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Copyright 2008 The McGraw-Hill Companies1-19
Chapter ObjectivesEconomic PerspectiveTheories Principles and ModelsMacro and MicroeconomicsIndividual’s Economizing ProblemSociety’s Economizing ProblemProduction Possibilities ModelUnemployment, Growth, and the FutureLast Word
Key Terms
End Show
Economic Efficiency
• Allocative Efficiency – Producing what society wants
Marginal Benefit = Marginal Cost
•Productive Efficiency – Producing at lowest cost
Lowest Average Total Cost
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LO5
Production Possibilities Model
• Illustrates production choices
• Assumptions:
• Full employment
• Fixed resources
• Fixed technology
• Two goods
1-20
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LO5
Production Possibilities Table
Type of Product
Pizzas (in hundred thousands)
Industrial Robots (in thousands)
Production Alternatives
A B C D E
10 9 7 4 0
0 1 2 3 4
Plot the Points to Create the Graph…
1-21
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LO5
Production Possibilities Curve
Pizzas
Ind
ust
rial
Ro
bo
ts
Attainable
0 1 2 3 4 5 6 7 8 9
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Unattainable
AB
C
D
E
U
The law of increasing opportunity costs makes the PPC concave.
1-22
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Optimal Allocation
LO5
a
b
c
d
e
MB = MC
MC
MB
15
10
5
01 2 3
Quantity of Pizza
Mar
gin
al B
enef
it &
Mar
gin
al C
ost
1-23
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LO6
A Growing Economy
• Economic Growth
• More resources
• Improved resource quality
• Technological advances
1-24
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Type of Product
Pizzas (in hundred thousands)
Industrial Robots (in thousands)
Production Alternatives
A' B' C' D' E'
14 12 9 5 0
0 2 4 6 8
A Growing Economy
LO6 1-25
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LO6
A Growing Economy
Pizzas
Ind
ust
rial
Ro
bo
ts
Attainable
0 1 2 3 4 5 6 7 8 9
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Unattainable
AB
C
D
E
EconomicGrowth
Now Attainable
A’
B’
C’
D’
E’
1-26
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LO6
Present Choices, Future Possibilities
Goods for the Present
Goo
ds f
or t
he F
utur
e
Goo
ds f
or t
he F
utur
e
Goods for the Present
P
F
CurrentCurve
CurrentCurve
FutureCurve
FutureCurve
Presentville Futureville
1-27
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LO6
International Trade
• Specialization
• Increased production possibilities
1-28
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Pitfalls to Sound Economic Reasoning
• Biases
• Loaded terminology
• Fallacy of composition
• Post hoc fallacy
• Correlation not causation
1-29
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Copyright 2008 The McGraw-Hill Companies1-30
Chapter ObjectivesEconomic PerspectiveTheories Principles and ModelsMacro and MicroeconomicsIndividual’s Economizing ProblemSociety’s Economizing ProblemProduction Possibilities ModelUnemployment, Growth, and the FutureLast Word
Key Terms
End Show
Key Terms• economics• economic perspective• opportunity cost• utility• marginal analysis• scientific method• economic principle• other-things-equal as
sumption• macroeconomics• aggregate• microeconomics• positive economics• normative economics• economizing problem• budget line
• economic resources• land• labor• capital• investment• entrepreneurial ability• factors of production• consumer goods• capital goods• production
possibilities curve• law of increasing
opportunity costs• economic growth