Econ 160 The Economic System of Competition Gains from Specialization & Trade.
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Transcript of Econ 160 The Economic System of Competition Gains from Specialization & Trade.
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Econ 160
• The Economic System of Competition
• Gains from Specialization & Trade
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Review: Definitions
• GoodGood : is anything that an individual wants to have more of, at zero price.• Resource: Anything that can be used to produce goods.• Scarcity: A good is scarce if the amount desired at zero price is more than the amount available at zero price.
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Review:AssumptionsReview:Assumptions
• Humankind has unlimited wants
• Our resources are limited
• ScarcityScarcity : Individually, and as a Society, we do not have enough resources to produce all the things we want.
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Review:Implications of ScarcityReview:Implications of Scarcity
• ChoiceChoice: people must choose which goods to acquire.
• Economic CostEconomic Cost: The Cost of any action, is the personal value of the next highest valued alternative given-up.
• CompetitionCompetition: We are in a state of competition for the use of resources
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Forms of Competition in SocietyForms of Competition in Society
• ViolenceViolence, , or Threat of Violence
• Social/PoliticalSocial/Political : competition on the basis of some limited behavior or characteristic
• Economic/MarketEconomic/Market: competition based on offering the highest value in exchange.
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Scarcity Society Choices
• What to produce? Goal find the mixture of outputs that maximizes society’s value.
• How to produce? Goal: find the optimal mix of inputs to maximize technical output.
• For whom to produce? Who will get to consume the goods produced.
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What Economics Is About
• Microeconomics: decisions of individuals and firms: what to buy and what to produce.
• Macroeconomics: the whole economic system and the role of government.
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Mechanisms of Choice
• Political: our representatives make choices
• Economic/market: individuals and firms make choices based on relative prices about what to produce
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Ten Principles of Economics
• Individual decision making
• How people interact
• The economy as a whole
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Individual Decision Making
• People Face Trade-offs: Choice
• Opportunity Cost
• Rational people think at the margins
• People respond to incentives
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How People Interact
• Trade Makes everyone better off
• The market system organizes production efficiently
• Markets outcomes can sometimes be improved upon by Government
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The Economic/Market Form of Competition
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Product Markets
FIRMSHOUSEHOLDS
ResourceMarkets
$'s $'s Revenue
$'s Income $'s
Goods & Services
Goods &Services
Resources Inputs
Circular Flow Diagram of the Exchange Economy
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Economic Agents & Decision-makingEconomic Agents & Decision-making
• HouseholdsHouseholds: Decisions: What to sell? What to buy? Assume Maximize Utility
• FirmsFirms: Decisions: What inputs to use? What to produce? Assume Maximize Profits.
• MarketsMarkets: Factor Markets, Product Markets
Role of MoneyRole of Money: The medium of exchange
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Definition of Money
• Currency in Circulation: Currency outside of Banks in the hands of households,or firms
• Checkable deposits in Banks, Savings & Loans, Credit Unions
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Interdependence & the Gains from Trade
(Chapter 3)
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Gains from Specialization &Trade
• Production Possibilities
• Resource Fish Coconuts
• Crusoe: 8 or 8
• Friday: 10 or 20
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Opportunity Cost in Production
Crusoe: 8 F = 8 C 1 F = 1C and 1C = 1F Friday: 10 F = 20 C 1 F = 2C and 1C = ½ F Thus Crusoe has a comparative advantage in the production of fish ( 1F = 1C) and Friday has a comparative advantage in the production of Coconuts ( 1C = ½ F)
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Separate Production Possibilities
Crusoe FridayFish Fish
Coco Coco
8
8
10
20
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Pre-Specialization Production
• Resource Fish Coconuts
• Crusoe: 4 and 4
• Friday: 5 and 10
• Total Output: 9 and 14
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Output with Specialization
Resource Fish Coconuts
• Crusoe: 8 and 0
• Friday: 1 and 18
• Total Output: 9 and 18
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Results of Specialization• No increase in Resources
• No increase in effort
• Increased output by 4 coconuts
• Increased output will be shared by the two people or countries so as to make both better off
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Apply Reasoning to more than two Resources
• Analyze production decisions using several resources with different relative abilities
• How to organize production to maximize output
• The graphical technique
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Graph: Production Possibilities Function
Assumptions:
1. Fixed resources: 10 acres in rows.
2. Fixed technology: current knowledge of how to produce.
3. Resources vary in relative productive ability.
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Resources and Potential Outputs
Row 1 2 3 4 5 6 7 8 9 10
Corn 10 10 10 10 10 10 10 10 10 10
Wheat 10 12 14 16 18 20 22 24 26 28
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Resources and Opportunity Cost
Row 1 2 3 4 5 6 7 8 9 10
Corn 10 10 10 10 10 10 10 10 10 10
Wheat 10 12 14 16 18 20 22 24 26 28
Cost of
1 corn
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8
Cost of
1 wheat
1.0 .83 .71 .63 .56 .50 .45 .42 .38 .36
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Production Possibilities Frontier
0
20
40
60
80
100
120
0 50 100 150 200
Wheat
Cor
n
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Graph MechanicsGraph Mechanics
• The curve divides the space: interior points possible; Points beyond impossible
• SlopeSlope: Rise/ Run: The slope reflects the relationship: Negative, more corn means less wheat, more wheat means less corn
• ShapeShape: The concave shape reflects increasing cost of production for either good.
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Changing assumptions Shifts the Curve
• An Increase in resources– Shifts the curve outward
• An increase in technology of Wheat production: Effects on Cost– Lowers cost of producing Wheat– Raises the cost of producing corn