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Opportunity Cost. Scarcity. The most basic economic problems People want more then there is. Resources are limited Wants are unlimited. Examples of Scarcity. Money: Want to go see a movie? You have $10.00, but the movie costs $10.50 Time: Finish homework and play video games before bed

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Scarcity
Scarcity

  • The most basic economic problems

  • People want more then there is.

    • Resources are limited

    • Wants are unlimited


Examples of scarcity
Examples of Scarcity

  • Money: Want to go see a movie?

    • You have $10.00, but the movie costs $10.50

  • Time: Finish homework and play video games before bed

    • Once you finish your homework, it is time to get ready for bed.

      • Ran out of time for games.

  • Resources: Countries, like the U.S., want to spend $ on resources- education and health.

    • Instead need to use $ for roads and defense.

      • Pot hole season!


Businesses and scarcity
Businesses and Scarcity

  • Must make many decisions:

    • which goods and services to make.

    • How much of a product to make.

  • Do not have enough resources to do everything they want.

  • Can make more then one product, but it costs more.



Making choices
Making Choices

  • Why do we have to choose between two options?

    • Because our wants and needs are bigger then our resources

  • How do you choose? (milk or cookie?)

    • Economics is the study of how people and governments make these choices.


Trade off
Trade-Off

  • Resources

    • Are scarce

    • Can only be used one way at a time

      • Pencil- I can use it to write, OR I can use it to style my hair. I cannot do both at the same time.

      • Land- Owner can use it to farm corn, OR golf course.

      • Money- Buy a friend dinner, OR buy a new video game.

  • You cannot use the same resource (pencil, land, money), at the same time, for different things.


Trade off1
Trade-off

  • In a Trade-off, you give up one thing for another.

    • The trade off for buying the basketball is you will not be able to take your friend out.

    • VS.


1 who makes trade offs
1. Who makes Trade-offs?

  • Everyone makes trade-offs!

    • Individuals: Should I watch this movie or play my video game?

    • Businesses: Should I use this land to farm corn, or to use as a golf course?

    • Government: Should we use this money to fix the roads, or give it to schools?


2 why do decisions lead to trade offs
2. Why do decisions lead to trade-offs?

  • Decisions lead to trade-offs because…

    • You can use resources only one way at a time

      • This means you can’t have it both ways!

      • Remember the song by the Rolling Stones

        • "You can't always get what you want"


Opportunity
Opportunity

  • Each possible use of a resource is an opportunity.

  • Every time we make a choice we give up an opportunity to do something else.

    • I will make pasta sauce with my tomato…

    • Guess I can’t make salsa today.

  • What are the opportunities for using a Tomato

  • Soup

  • Pasta Sauce

  • Sandwich

  • Salad

  • Salsa

  • etc


Opportunity cost1
Opportunity Cost

  • The cost of something is how much it is worth.

    • Those tomatoes cost $5.00

  • Opportunity Cost is the cost of giving up the other choice.

    • The next best (2nd best) choice not taken

      • Salsa is the opportunity cost of me deciding to make pasta sauce.


  • 3 why are opportunity costs different for each possible choice
    3. Why are opportunity costs different for each possible choice?

    • Each opportunity has many choices

    • The 2nd best choice of each decision is the opportunity cost, which will change with every decision you make.


    6 what is the difference between a trade off and an opportunity cost
    6. What is the difference between a trade-off and an opportunity cost?

    • A trade-off is the act of choosing one thing over another.

      • I will use the tomato to make pasta sauce.

    • Opportunity cost is the 2nd best choice that you have given up because of the trade-off made.

      • I have given up the opportunity to make…


    Thinking at the margin
    Thinking at the Margin: opportunity cost?

    • Folding paper:

      • Fold your paper in half one time.

      • How many times do you need to fold the paper so it will,

        • Fit in pocket of pants

        • lay flat in pocket (no one can see it)

    • How many more times do you need to fold the paper?

    • How many less times did some of you need to fold the paper?


    Cost benefit analysis
    Cost/Benefit Analysis opportunity cost?

    • When making a decision, you have to look at what you may be giving up by picking something and what you may be getting.

      • Pros- would be the benefits of your choice.

      • Cons- would be the cost of your choice.


    Cost benefit chart pasta sauce vs other options salsa
    Cost/Benefit chart: Pasta sauce vs. other options (salsa). opportunity cost?

    Benefit/Pro

    Cost/Con


    7 what is the purpose of a cost benefit analysis
    7. What is the purpose of a cost/benefit analysis? opportunity cost?

    • A cost/benefit analysis will…

    • help determine (find out) what you will gain (benefit) and lose (cost) by taking a specific action.

      • Benefit- I get to eat pasta

      • Cost- I can’t have salsa


    4 what do you compare when you think at the margin
    4. What do you compare when you think at the margin? opportunity cost?

    • When you think at the margin, you compare…

      • marginal cost with marginal benefit.


    Marginal cost vs marginal benefit
    Marginal Cost vs. Marginal Benefit opportunity cost?

    Marginal Cost

    Marginal Benefit

    Extra benefit of adding one more of something.

    What if I wanted to make ONE more pan of pasta sauce?

    What is the benefit?

    • Extra cost of making one more of something

    • What if I wanted to make ONE more pan of pasta sauce?

      • What is the Cost?


    5 how can thinking at the margin help improve profits
    5. How can thinking at the margin help improve profits? opportunity cost?

    • Businesses can look at the point where the marginal benefit is higher then the marginal cost

      • This is the point where businesses will make the most money.

      • If Marginal Cost is higher then the Marginal Benefit then companies lose money.


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