3.1.7 · 35–55 minutes · investigate, calculate, discuss, review
What you will learn
- Defend a thesis and distinguish factual from objective disagreements.
- Respond to new information with transparent revisions.
- Keep initial and revised reasoning for later review.
3.1 · The Investment Case
Check the evidence

The Investment Case · the work you will do
- 1Check the evidence
- 2Build the opposing case
- 3Test what matters
- 4Reach a judgement
Before you begin
Your committee initially considers DailyCup at £300,000. New payment data shows that a headline menu price was mistaken for the realised average. What should change—and what should remain on the record?
Record your first answer before continuing.
Video coming soon · about 4 minutes
The Investment Committee
Use the narration below while the recording is being made, then try the decisions in this lesson.
Read the full narration
Welcome to On Judgement. Your committee initially considers DailyCup at £300,000. New payment data shows that a headline menu price was mistaken for the realised average. What should change—and what should remain on the record? Take a first view. You can change it when you have considered the evidence.
Before discussion, each pupil records a view, decisive assumption and main uncertainty. Assign advocate, challenger, evidence checker and chair roles. The chair gathers questions before giving a recommendation. Roles organise the discussion; they do not require anyone to defend a claim they know is false. Mark the argument and response to evidence rather than confidence, status or charisma.
A dispute about transaction count needs verification. A dispute about sustainable margins needs assumptions and evidence. A dispute about whether near-term cash or long-term growth matters most may reflect different objectives. Name the type before trying to resolve it. Agreement is not evidence of correctness, and disagreement is not automatically proof of a productive committee.
When new data arrives, identify which prior assumption it affects. Recalculate dependent results and examine whether the data is reliable, representative and persistent. Do not mechanically rewrite every forecast from one observation. State the size and limitations of the change. Retaining a recommendation can be reasonable if its foundations survive; changing it can be a disciplined response rather than a failure.
Save the initial memo and add a dated revision. State what changed, what did not, why, and what remains unknown. A later outcome will be reviewed separately from the quality of this response. The final committee note should integrate the business, numbers, price and uncertainty studied earlier, preparing for the human-side lessons and the eventual Futures pitch.
Let's work through New information card · reveal after the initial memo. Initial management summary assumed 100,000 transactions at realised £5, variable £3 and fixed £150,000. New fictional payment evidence identifies 20,000 transactions at £4.50 and 80,000 at £5. Assume no other revenue adjustments or cost changes. For an optional cash bridge, fixed costs include £10,000 depreciation; operating tax 25%; capex £20,000; operating working-capital increase £5,000. Pause here and try the calculation or reasoning before continuing.
Corrected revenue=20,000×4.50+80,000×5=£490,000. Contribution=490,000−300,000=£190,000; operating profit=£40,000, down £10,000. Optional FCFF=40,000×.75+10,000−20,000−5,000=£15,000, versus £22,500 under the original assumptions. If a persistent £7,500 after-tax annual cash reduction is explicitly assumed across the earlier forecast range, £25,000–£40,000 becomes £17,500–£32,500; at 10% no-growth value becomes £175,000–£325,000.
That valuation revision is conditional on persistence and all other assumptions remaining valid. A historical promotion does not by itself prove a permanent annual cash reduction.
Now try the choices in this lesson. If your answer changes, identify the reason. Keep initial and revised reasoning for later review. Use the case activities to put the idea into your own words, and return to the evidence when more than one conclusion is defensible.
Collect independent views first
Before discussion, each pupil records a view, decisive assumption and main uncertainty. Assign advocate, challenger, evidence checker and chair roles. The chair gathers questions before giving a recommendation. Roles organise the discussion; they do not require anyone to defend a claim they know is false. Mark the argument and response to evidence rather than confidence, status or charisma.
Identify the real disagreement
A dispute about transaction count needs verification. A dispute about sustainable margins needs assumptions and evidence. A dispute about whether near-term cash or long-term growth matters most may reflect different objectives. Name the type before trying to resolve it. Agreement is not evidence of correctness, and disagreement is not automatically proof of a productive committee.
Update the chain, not just the target
When new data arrives, identify which prior assumption it affects. Recalculate dependent results and examine whether the data is reliable, representative and persistent. Do not mechanically rewrite every forecast from one observation. State the size and limitations of the change. Retaining a recommendation can be reasonable if its foundations survive; changing it can be a disciplined response rather than a failure.
Keep an honest revision record
Save the initial memo and add a dated revision. State what changed, what did not, why, and what remains unknown. A later outcome will be reviewed separately from the quality of this response. The final committee note should integrate the business, numbers, price and uncertainty studied earlier, preparing for the human-side lessons and the eventual Futures pitch.
New information card · reveal after the initial memo
Initial management summary assumed 100,000 transactions at realised £5, variable £3 and fixed £150,000. New fictional payment evidence identifies 20,000 transactions at £4.50 and 80,000 at £5. Assume no other revenue adjustments or cost changes. For an optional cash bridge, fixed costs include £10,000 depreciation; operating tax 25%; capex £20,000; operating working-capital increase £5,000.
- Corrected revenue=20,000×4.50+80,000×5=£490,000.
- Contribution=490,000−300,000=£190,000; operating profit=£40,000, down £10,000.
- Optional FCFF=40,000×.75+10,000−20,000−5,000=£15,000, versus £22,500 under the original assumptions.
- If a persistent £7,500 after-tax annual cash reduction is explicitly assumed across the earlier forecast range, £25,000–£40,000 becomes £17,500–£32,500; at 10% no-growth value becomes £175,000–£325,000.
That valuation revision is conditional on persistence and all other assumptions remaining valid. A historical promotion does not by itself prove a permanent annual cash reduction.
Put it into practice
1. Run the committee
Write an initial 150-word memo using the earlier pack, then reveal the new information card. Discuss with an evidence checker and challenger.
Write your response in your workbook before opening feedback.
Compare with a model response
Initial views should name price 300k and the conditional 250–400k range. After reveal, check source definitions and whether the promotion persists. Retain the first memo rather than replace it.
2. Write the revision
In 150–200 words, state the corrected calculation, valuation implication and what evidence you need next.
Write your response in your workbook before opening feedback.
Compare with a model response
Profit corrects to 40k. If the annual after-tax reduction persists, the conditional range becomes 175–325k. Explain whether to investigate, negotiate, defer or decline, and seek promotion/cohort/cash evidence.
3. Audit the discussion
Record one factual correction, one legitimate assumption difference and one decision-process improvement.
Write your response in your workbook before opening feedback.
Compare with a model response
The realised-price correction is factual in the supplied case. Persistence or required return may be disputed assumptions. Independent initial memos and explicit source checking are process improvements; neither guarantees a profitable outcome.
Jargon buster
Committee
A structured forum for challenging and deciding a case.
Revision memo
A retained explanation of changes after new information.
Realised price
Revenue per actual transaction under the stated adjustments.
Decision record
Evidence and reasoning retained as they stood at the time.
Dissent
A reasoned disagreement with the current view.
Update
A change in belief or action in response to relevant evidence.
Knowledge check
Make each choice on the page. Feedback explains the reasoning. Use Try again after revisiting an idea.
AQA connection and further reading
AQA 7138: AO 2 application, AO 3 analysis and AO 4 evaluation (4.2), with command-word practice (4.4). Case connections include 3.1.4 finance, 3.3.3 strategy and 3.3.4 uncertainty. These original investing tasks and rubrics are not official AQA questions or mark schemes.
AQA 7138 specification
Primary curriculum reference; links and original classroom rubrics are interpretive, not endorsement.
Annie Duke · process and resulting interview
Author-hosted discussion informs the short attribution of resulting. Analyst cases and process tools here are original.
Take forward
Defend a thesis and distinguish factual from objective disagreements. Respond to new information with transparent revisions. Keep initial and revised reasoning for later review.