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Money · Guided lesson

Build a market supply schedule

About 8 minutes · 3 reading + 5 practice and checks
Time includes reading, practice, and questions. Extra videos or further study are optional.
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A fictional local-market analysis with demand/supply schedules, equilibrium, shifts, opportunity costs and a bounded price-change explanation.

Keep your working files in your own notebook or software. Save a private description, checklist, and work link in My Proof.

What to include

  • An opportunity-cost table with feasible alternatives and explicit value assumptions.
  • A demand table and price-change quantity explanation.
  • A supply table with matched units and a condition-change note.
  • A market-balance table with model equilibrium and limits.
  • A shift/movement comparison with an explicit causal-assumption note.
  • A complete fictional microeconomic market brief.

Review and revise

Use these criteria to check your work and choose what to improve.

  • All supplied records reconcile and the decision uses the named case rules.
  • Calculations show units, intermediate values and a second check.
  • Changed-input practice revises the affected result and identifies uncertainty.
  • The final project combines six lesson records, separates fictional assumptions from current rules, and states a supported next step.
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Before you begin

The idea in everyday life

This is an original fictional practice case. No account, payment, personal record or outside participation is required. Notebook supply per week: price $2 offers 30; $4 offers 50; $6 offers 70. Other production conditions unchanged.

The idea

Supply records what producers are willing and able to offer at each price during the same period; it is not necessarily inventory sold.

Follow along

Build a market supply schedule — worked practice

Supply records what producers are willing and able to offer at each price during the same period; it is not necessarily inventory sold.

Use paper or a local table; label all amounts as fictional USD unless the case names another unit. Notebook supply per week: price $2 offers 30; $4 offers 50; $6 offers 70. Other production conditions unchanged.

Supply schedule with other conditions fixed

Paste at A1.

ANotebook price USDBQuantity supplied notebooks/week
230
450
670

Copy as plain text
  1. 1. Step 1: Draw the matching price and weekly-supply columns

    Draw the matching price and weekly-supply columns.

    You should see: (2,30),(4,50),(6,70).

    Supply records what producers are willing and able to offer at each price during the same period; it is not necessarily inventory sold.

  2. 2. Step 2: Compute the $4-to-$6 difference

    Compute the $4-to-$6 difference.

    You should see: Quantity supplied increases by 20.

    Keep this intermediate result so the final decision can be checked.

  3. 3. Step 3: Plot quantity on horizontal and price on vertical axes if drawing a graph

    Plot quantity on horizontal and price on vertical axes if drawing a graph.

    You should see: The three supplied points form an upward schedule under these inputs.

    Keep this intermediate result so the final decision can be checked.

  4. 4. Step 4: Write a bounded interpretation

    Write a bounded interpretation.

    You should see: Higher price is associated with a higher offered quantity holding the stated conditions constant; actual demand and sales remain separate.

    Keep this intermediate result so the final decision can be checked.

Now change one thing

At $6 supply becomes 75. Increase from the $4 supply of 50?

Your work

What to finish

A supply table with matched units and a condition-change note.

Common mistake

Watch for this

Combining monthly supply with weekly demand without conversion.

How can I tell I understand it?

Construct a supply schedule and distinguish price movement from changed production conditions on the supplied changed case while preserving the stated rule and checking the final record.

Try 3 questions

Quick knowledge check

Answer all 3 questions. Get at least 2 right and the lesson completes automatically.

Not yet passed

You’ll get an explanation for each answer. Signed in? Your results save to your account.

1Supply at $3 is 40 units/week and at $5 is 65. Quantity increase?
2A production cost rises while price is unchanged. What may change?
3What would make a demand/supply comparison invalid?
0 of 3 answeredApply the lesson to a short question, then review the explanation.
3
Finish this lesson

Pass the check. We’ll save the progress.

Answer all 3 questions above and get at least 2 right. You can review the explanations and try again.

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Sources and further reading

Explore the references behind this lesson.

Federal Reserve Education — Supply and Demand Infographic
Source & access notes · checked 2026-10-01

Official page opened/read during Money expansion authoring; checked the relevant concept and access state. These sources do not establish funding eligibility.

Access: Official resource page and its readable overview/transcript inspected; no external LMS lesson or media playback is claimed.

Reuse: Original fictional practice, questions and calculations; paraphrased concepts with a source link. No source exercise copied.

Federal Reserve Education — Supply video and transcript
Source & access notes · checked 2026-10-01

Official page opened/read during Money expansion authoring; checked the relevant concept and access state. These sources do not establish funding eligibility.

Access: Official resource page and its readable overview/transcript inspected; no external LMS lesson or media playback is claimed.

Reuse: Original fictional practice, questions and calculations; paraphrased concepts with a source link. No source exercise copied.

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