Distinguish a demand shift from movement along it
See this course’s project requirements
A fictional local-market analysis with demand/supply schedules, equilibrium, shifts, opportunity costs and a bounded price-change explanation.
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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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The idea in everyday life
This is an original fictional practice case. No account, payment, personal record or outside participation is required. Original demand: $4→70, $5→60, $6→50. New school term: $4→90, $5→80, $6→70. Supply is unchanged; the term change is the supplied cause within this model.
A shift changes quantity at the same price because another condition changed; movement compares different prices on one unchanged schedule.
Distinguish a demand shift from movement along it — worked practice
A shift changes quantity at the same price because another condition changed; movement compares different prices on one unchanged schedule.
Use paper or a local table; label all amounts as fictional USD unless the case names another unit. Original demand: $4→70, $5→60, $6→50. New school term: $4→90, $5→80, $6→70. Supply is unchanged; the term change is the supplied cause within this model.
Demand shift at unchanged prices
Paste at A1.
| APrice USD | BOriginal demand per week | CNew-term demand per week |
|---|---|---|
| 4 | 70 | 90 |
| 5 | 60 | 80 |
| 6 | 50 | 70 |
Copy as plain text
1. Step 1: Compare old and new demand at the same price
Compare old and new demand at the same price.
You should see: At $5 demand rises from 60 to 80.
A shift changes quantity at the same price because another condition changed; movement compares different prices on one unchanged schedule.
2. Step 2: Calculate the shift at each listed price
Calculate the shift at each listed price.
You should see: Each rises by 20 notebooks/week.
Keep this intermediate result so the final decision can be checked.
3. Step 3: Contrast a within-original price move
Contrast a within-original price move.
You should see: $4 to $6 changes demand 70 to 50: 20 fewer on the same schedule.
Keep this intermediate result so the final decision can be checked.
4. Step 4: State the two different comparisons
State the two different comparisons.
You should see: School-term change is a demand shift; price-only change is movement along the original schedule.
Keep this intermediate result so the final decision can be checked.
What to finish
A shift/movement comparison with an explicit causal-assumption note.
Watch for this
Calling every quantity change a demand shift.
How can I tell I understand it?
Separate same-price schedule shifts from price-only movement in a supplied market model on the supplied changed case while preserving the stated rule and checking the final record.
Quick knowledge check
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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.
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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