what is economics? chapter 1.1. needs and wants a need is a basic requirement for survival and...
TRANSCRIPT
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What is Economics?
Chapter 1.1
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Needs and Wants
• A need is a basic requirement for survival and includes food, clothing, and shelter
• A want is a way of expressing a need and is NOT needed for survival
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Kramer’s Needs and Wants
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Kramer’s Needs
• Choc Milk
• Hand-Sanitizer
• Mommy
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Kramer’s Wants
• Toys
• Toys
• And more toys….
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TINSTAAFL
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TINSTAAFL
• There is no such thing as a free lunch
• Costs will always exist, even if you think it is free
• Examples?
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Goods vs. Services
• Goods are physical objects that someone produces
• Examples include food, clothing, and video games
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Services
• Services are actions or activities that one person performs for another
• Hairdresser, photographer, teacher, lawyer, firefighter, etc.
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Problem of Limits
• People’s needs and wants are unlimited, but goods and services ARE limited.
• This predicament creates scarcity
• Scarcity forces people to make choices
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So what is Economics?
• Economics is the study of how people seek to satisfy their needs and wants by making choices
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Scarcity versus Shortage
• Shortages occur when consumers want more of a good or service than producers are willing to make available at a particular price
• NOT the same as scarcity
• Scarcity ALWAYS exists, shortages do not
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Examples of Shortages
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Examples of Shortages
• What in the world was a Furby anyway?
• Iphone/Ipad
• New items during Christmas shopping season
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Are Shortages a good thing?
• Do shortages benefit or harm companies?
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Factors of Production
• Land
• Labor
• Capital
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Land
• Refers to all natural resources used to produce goods and services
• Farmland, oil, iron, coal, water, forests
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Labor
• Effort people devote to tasks for which they are paid
• Doctors, teachers, assembly line workers
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Capital
• Any human made resource that is used to produce other goods and services
• Can be both physical capital and human capital
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Physical Capital
• Human made objects used to create other goods and services
• Machinery, tools, construction equipment
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Human Capital
• Knowledge and skills a worker gains through education and experience
• You are in class right now in order to increase your human capital
• Main reason why people go to college
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Entrepreneurs
• Entrepreneurs are people who decide how to combine resources to create new goods and services
• Start own businesses to provide a good or service
• They are risk takers
• Consumers of the factors of production
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Opportunity Cost
• Chapter 1.2
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Every Decision has a Cost
• We cannot do two things at once, therefore we must give up something when we make decisions
• Do not confuse the idea of trade-offs and opportunity cost
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Tradeoff vs. Opportunity Cost
• A tradeoff is the act of giving up one benefit in order to gain another, greater benefit
• For instance, you can’t play both football and tennis for PHS
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Government involves tradeoffs
• “Guns or Butter”
• Spending money on “guns” refers to money devoted to the military
• Spending money on “butter” refers to money devoted to domestic needs
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Opportunity Cost
• The most desirable alternative given up when you make a decision
• If you didn’t decide to do _______, you would have done _______.
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Thinking at the Margin
• Process of deciding whether to do or use one additional unit of some resource
• This is when you decide how much more or less to do
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Cost/Benefit Analysis
• In order to do this, you must understand the role of marginal costs and marginal benefits
• Marginal cost is the extra cost of adding one unit
• Marginal benefit is the extra benefit of adding the same unit
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Example
• Do the benefits of sleeping in one extra hour outweigh the costs?
• As long as the marginal benefits exceed the marginal costs, you will make that decision
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Discussion
• What marginal costs and benefits might a business owner have to consider when trying to decide whether to hire one, two, or three additional workers?
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Answer
• Must consider how much added output each worker would provide, compared to the cost of added wages
• Again, if the benefits outweigh the costs you will continue to hire more workers
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Assignment
• Page 12, #3-10
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1.3: PPC Curves
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PPC Curves
• A graph that shows alternative ways to use an economy’s productive resources
• Used to compare two separate goods and services