Topic 13 · Economics & Personal Finance

Scarcity and Opportunity Cost

How do scarcity and opportunity cost help explain choices?

Learning goal

What you will be able to do

identify a scarce resource; choose among alternatives; name the opportunity cost of a choice

Before you begin

Activate what you know

Imagine having thirty minutes for either the playground or the art table. If you choose one, what do you give up for that time?

Words to know
1

Limited Resources Create Choices

Time, money, land, tools, and materials are limited. People can imagine more uses for them than can happen at once. This condition is scarcity, and it affects individuals, families, businesses, and governments. Scarcity does not mean nothing is available, and it does not mean every person has the same amount. It means using a resource one way leaves less of it for another use. A careful choice compares alternatives and goals

Teaching visual 1 for Scarcity and Opportunity Cost
Read the visual. Because one space cannot fully serve both plans at the same time, the school must make a choice
2

Every Choice Has a Next-Best Alternative

Suppose the school values fresh food lessons most and chooses the garden. If the reading space was the next-best alternative, that reading space is the opportunity cost. The vegetables are a benefit of the chosen option, not its opportunity cost. Different decision-makers may rank alternatives differently because they have different goals and information. Good reasoning states the goal, identifies the limited resource, names the choice, and explains what next-best option was given up

Teaching visual 2 for Scarcity and Opportunity Cost
Read the visual. Opportunity cost is the next-best option not chosen, not every possible thing in the world
Key point

Scarcity Is About Limited Resources

Wanting two things is not enough to show scarcity. Identify the limited resource–such as time, space, money, or materials–that makes a choice necessary

Study strategy

Use the Choice Frame

The scarce resource is ____. I chose ____ because ____. My opportunity cost is ____ because it was my next-best alternative

Common misconception

Cost Is Not Only Money

Opportunity cost may be time, space, an activity, or another benefit. It is the next-best alternative given up, even when no money is spent

Try it

Choose for a Fictional Class

The class has one hour for either a stream walk, a museum video, or a map game. Rank the three, choose one, and circle the opportunity cost

TOPIC SUMMARY

Scarcity means resources are limited compared with possible uses. A choice selects one alternative, and its opportunity cost is the next-best alternative given up

Practice and answer guide

Work through all 8 questions. Open an answer only after you have written or explained your response.

  1. 1. A class has one hour and three possible activities. What is the scarce resource? A. time B. every activity C. the calendar date
    Check answer

    Time

  2. 2. What is opportunity cost? A. the next-best alternative given up B. every possible choice C. only the money spent
    Check answer

    The next-best alternative given up

  3. 3. A town has one empty lot for either a park or a clinic. If it chooses the clinic and the park was next best, what is the opportunity cost?
    Check answer

    The park, because it was the next-best alternative not chosen

  4. 4. Name one benefit of the chosen clinic. Is that benefit the opportunity cost? Explain
    Check answer

    A benefit could be nearby access to health services. No; that is a gain from the chosen option, while opportunity cost is the next-best option given up

  5. 5. Draw three alternatives for using one scarce classroom resource
    Check answer

    Answers vary. All three alternatives must compete for the same clearly named resource, such as one hour, one wall, or one set of materials

  6. 6. Rank your three alternatives and identify your choice and next-best alternative
    Check answer

    Answers vary. The response must rank the options so the next-best unchosen alternative is clear

  7. 7. Why might two people choose differently when facing the same scarcity?
    Check answer

    They may have different goals, needs, information, or rankings of the alternatives

  8. 8. Complete: The scarce resource is ____. I choose ____. My opportunity cost is ____
    Check answer

    Answers vary. All blanks must form one consistent choice: a limited resource, a selected use, and the next-best use not selected