Welcome to ECON 160 Principles of Microeconomics Professor Tontz.
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Transcript of Welcome to ECON 160 Principles of Microeconomics Professor Tontz.
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Welcome to ECON 160
Principles of Microeconomics
Professor Tontz
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Instructor
Richard Tontz
Office: JH 4253
Email: [email protected]
Phone: (818) 677-2433
Office hours: Mon.,Wed. 2:00 – 3:00pm, Tues. 3:15-4:00pm by appointment.
Class Website: http://www.csun.edu/~rlt50610/
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Index Card
• Front-side (lined)ECON 160/TR12:30pm
Name & underline what you go by
Phone number
Major/option
Hobbies
Favorite book
• Back-sideOccupation, if currently working
Your expectations 6 years from now
Any message you want to give me
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Instructional Information
• 9 hour / Week Course of Study
• Path to Success– Read chapters before Discussion session– Download and review Classnotes &
Powerpoints– Discussion sessions: The Conversation– Definitions: Flash Cards– Topical Reviews
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ECONOMICS
Economics is a Science that analyzes how Individuals behave, in a world of Scarcity.
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Science is Objective or Positive
• Positive: Describes what is or will be
– Objective– Factual– Testable– Descriptive
• Normative: Describes what should or ought to be
– Subjective– Contains a value judgement– Opinion
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Construction of Theory
• Abstractions
• Definitions
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Definitions: Words to describe reality
Children learn words in pairs
( in ) ( out )
( up ) ( down )
( left ) ( right )
( Hot ) ( Cold )
Alternative perspective: The world exists in a continuum
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Definitions break up the continuum into parts
• Red Yellow Blue
• Orange Green• Red Orange Yellow Green Blue Indigo Violet
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Economic Analysis
• Looks at small degrees of Change
• Marginal: Additional: One more…
• Marginal Value: Additional Value of having one more
• Marginal Revenue: Additional revenue from one more.
• Marginal Cost: Additional cost of one more
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Construction of Theory
• Abstractions
• Definitions
• Assumptions
• Implications
• Adoption of Theory
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A Good Is Anything, That an Individual Wants to Have More Of, at Zero Price.
• Anything : Material or Non-material
• An individual wants
• Have More of
• At Zero Price
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Resource: Anything that can be used to produce Goods.
• Land = all its attributes
• Labor = People
• Capital = Buildings & Equipment
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Assumptions
• Humankind has unlimited wants
• Our resources are limited
• Scarcity : Individually, and as a Society, we do not have enough resources to produce all the things we want.
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Implications of Scarcity
• Choice: people must choose which goods to acquire.
• Economic Cost: The Cost of any action, is the personal value of the next highest valued alternative given-up.
• Competition: We are in a state of competition for the use of resources
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Forms of Competition in Society
• Violence, or Threat of Violence
• Social/Political : competition on the basis of some limited behavior or characteristic
• Economic/Market: competition based on offering the highest value in exchange.
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Primary Social Goal = Fairness
• Violence: not fair.
• Social political: not fair.
• Economic: not fair,
• Life is NOT FAIR !!
But, the market offers the broadest and most fair system
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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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Product Markets
FIRMSHOUSEHOLD
ResourceMarkets
$'s $'s Revenue
$'s Income $'s
Goods &Services
Goods &Services
Resources Inputs
Circular Flow Diagram of the Exchange Economy
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Circular Flow Diagram of the Exchange Economy
• Households: Decisions: What to sell? What to buy? Assume Maximize Utility
• Firms: Decisions: What inputs to use? What to produce? Assume Maximize Profits.
• Markets: Factor Markets, Product Markets
Role of Money: The medium of 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.