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Commerce · IV.11 · MMXXVI · daylight

La Bourse  /  Volume IV  /  Nº IV.11  /  Workbook — the student

WORKBOOK — THE STUDENT

Chapter IV.11 · Where Regeneration Costs More

For the person studying this alone, or in a seminar, with no budget and no signature authority. This is the chapter that will make you useful fastest, because almost nobody can do the arithmetic in it and everybody needs somebody who can.

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WHY THIS WORKBOOK IS DIFFERENT

The other chapters in this volume teach you things that are true. This one teaches you a discipline: how to tell a cost that will fall from a cost that will not, and what to do differently in each case.

That discipline transfers completely out of economics. It is the same question whether you are looking at a polymer spread, a language you are learning, a recovery from an injury, a relationship, or the price of a flat. Some costs fall with practice and volume. Some do not, because their driver is not experience. Confusing the two is how people spend years waiting for something to get easier that was never going to.

You do not need an organisation for any of this. You need a spreadsheet and the willingness to write a number down before you have an opinion about it.

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PART ONE — DISCOVERY

Days 1–20: learn to sort

Exercise 1.1 — The three boxes, on things you actually buy (90 minutes)

Take ten things you buy or use regularly where a "better" version exists at a higher price: food, clothing, transport, a device, energy, a service. For each, put it in a box.

1. Already cheaper, unnoticed — the expensive-looking option turns out to be cheaper once you count the whole cost.
2. More expensive now, cheaper at a volume you can name — and name it.
3. More expensive now and at every volume you can foresee.

You will find the third box is fuller than you expected, and that you have been telling yourself a box-two story about several box-three items. That discovery is the point of the exercise.

Exercise 1.2 — Find the cost term that has no learning rate (60 minutes)

For each box-three item, answer one question in writing: what would make this cost fall?

If the answer is "doing it more often," it is box two and you sorted it wrong. If the answer is "people living closer together," "wages not rising," "land being cheaper," or "somebody's hour being worth less," it is box three and you have found the reason.

This single question is the most portable thing in the chapter. Use it on a career, a city, a technology, a habit.

Exercise 1.3 — The appreciative interview (45 minutes, with another person)

Find somebody who pays a permanent premium on purpose — buys organic, repairs rather than replaces, uses a cooperative supplier, commutes by a slower route — and ask exactly this, without variation:

"Tell me about something you pay more for on purpose, and have paid more for over a long time. What made it worth it? Did you ever expect the price gap to close, and what happened to that expectation?"

Then stay quiet. Take notes on the reasoning, not the choice.

Most people answer the first half easily and are startled by the second. That startle is the chapter in miniature: almost everybody who pays a permanent premium has an unexamined story about it becoming temporary.

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PART TWO — THE ARITHMETIC

Days 21–45: compute before you argue

Exercise 2.1 — Reproduce the chapter's figures (3 hours)

Do not take any of them on trust. Open lib/verify/IV_11.py, read it, then compute these independently — by hand, in a spreadsheet, or in whatever language you use.

1. Land per tonne at a 19.2 per cent yield gap. Confirm 1.2376 and 23.8 per cent more land.
2. The share of the gap that diversification closes: (0.192 − 0.087) / 0.192. Confirm 54.7 per cent.
3. Aluminium: 14 / 0.7. Confirm 20× and a 95 per cent energy saving.
4. The learning-curve crossover: ln(1/1.318) / ln(0.88/0.97). Confirm 2.84 doublings and 7.1× volume.
5. Kerbside and return-point collection cost per tonne, and the ratio.
6. The repair ratio multiplier 1.015/0.96, and the years to 0.50 and to 1.00.
7. The sparing/sharing habitat arithmetic, both guilds.
8. p* for the polymer case, and the maximum premium the UK levy can carry.

Then do the thing that matters most: find one figure in this chapter you can check against an outside source, and check it. The market prices, the collection costs and the learning rates are all flagged as indicative or assumed — go and find better ones. If your number differs, write down by how much and bring it to your seminar. This edition wants to be checked.

Exercise 2.2 — Your own permanent premium (60 minutes)

Choose one box-three item from Exercise 1.1 and compute p* on your own life.

      p  <  p*  =  m  +  s  +  τ · λ / (λ + w)

Translate each term honestly.

• p — what the better version actually costs you extra, per year.
• m — what you genuinely get back in money. Not satisfaction. Money.
• s — costs you avoid: repairs, replacements, medical, time you would pay for.
• τ — a future cost you avoid entirely: a tax, a fine, a breakdown, a price rise you expect.
• λ — how likely that is per year. Be honest. 1/λ is when you expect it.
• w — your own discount rate. Most students should use something high, because money now genuinely matters more to you than money in ten years.

Compute p. Compare to p. If p > p, the difference is the amount you are paying for reasons that are not financial — and that is completely fine, and you should write it down as exactly that in one sentence.

That sentence is the exercise. Most people either refuse to pay the premium or refuse to admit they are paying one. The third option — pay it, name it, size it — is available and almost nobody takes it.

Exercise 2.3 — Write the falsifier (30 minutes)

For each thing you classified as a permanent premium, write the observation that would change your mind. A volume. A price. A wage ratio. A published study with a specific finding.

Then take the chapter's own honest positive and study it, because it is the model: in 2012 the UK's own task force set £100/MWh by 2020 for offshore wind as a stretch target, and the 2017 auction cleared at £57.50 — 42.5 per cent below it, three years early. Everybody serious had that premium as structural. It was a volume problem in a permanent costume.

If you cannot write a falsifier, you have not classified a cost. You have adopted a mood about it.

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PART THREE — DREAM AND DESIGN

Days 46–70: build the apparatus

Exercise 3.1 — The present-tense description (60 minutes)

Write 500 words describing, in the present tense, a sector you care about eight years from now, in which permanent premiums are named and paid properly.

Constraints, and they are the whole exercise:

• Name who pays each premium and why they hold the avoided cost.
• Include one premium that is still permanent and still being paid.
• Include one that everybody thought was permanent and was not — and say how they found out.
• No adjectives of achievement. Describe a Tuesday.

The third constraint defeats most people. If you cannot describe the mechanism by which somebody discovered they were wrong, you have designed a belief rather than a system.

Exercise 3.2 — Your classification sheet (90 minutes)

Build the artifact that makes you useful in a room. One page, five columns:

Fill it for ten items — from your own life, or from a sector you are studying, or from a firm whose published accounts you can read. Then give it to one person and ask a single question: "Which row do you think I got wrong?"

The argument that follows is the most valuable forty minutes in this workbook, because every disagreement will be about a falsifier, and a disagreement about a falsifier is a conversation that can be settled by evidence.

Exercise 3.3 — The instrument sketch (45 minutes)

Pick one permanent premium and design the instrument that would spread it. Choose one of the four and say why not the other three:

• a procurement standard — write it as an outcome, with a term long enough to finance against, phased against real supply;
• a contract for difference — a strike, a reference index, two-way settlement, a term;
• a tariff — only where the competition is outside the jurisdiction;
• a levy on the substitute — and compute the maximum premium it can carry, which is the rate divided by the threshold.

One page. The discipline is the why not the other three, because that is where the thinking lives.

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PART FOUR — DESTINY AND DELIGHT

Days 71–90: make it hold, and enjoy it

Exercise 4.1 — The review you will actually do (20 minutes)

Put one recurring slot in your calendar — quarterly is enough — called classification review. In it you do exactly one thing: read your falsifiers and ask whether any of them has occurred.

This takes fifteen minutes and it is the whole of Destiny. A classification nobody re-examines becomes furniture, and furniture is how people end up paying premiums that stopped existing years ago.

Exercise 4.2 — Say the number out loud (this week)

Find one conversation where a cost has been circling for months without anybody stating it, and state it. Not as a complaint — as a fact with a decimal point, followed immediately by the useful question: so what do we want to do about that?

Watch what happens to the room. This is the single most transferable social skill in the entire edition, and it is the reason the Delight movement of this chapter is about relief rather than triumph.

Exercise 4.3 — Delight, on purpose (ongoing)

Choose one permanent premium you pay, admit that it is a donation, and then enjoy it properly rather than half-justifying it. The coffee, the bicycle, the repaired jacket, the small supplier.

A donation you have named is a pleasure. A donation you are pretending is an investment is a low-grade anxiety you carry into every purchase. The arithmetic in this chapter exists to get you to the first one.

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THE TERM PROJECT

One sector, classified

Choose a single product category with public data — bottled beverages, cotton apparel, domestic heating, coffee, small electronics, milk — and classify its regenerative substitutions.

Deliverables.

1. The classification sheet (1 page). Ten substitutions, three boxes, a falsifier and a review date for each.
2. The arithmetic (800 words plus workings). For the three largest premiums, compute p* with your own sourced inputs. State every assumption and where you got it.
3. The permanence memo (600 words). For the premium you judge most clearly permanent, name the cost term that has no learning rate and say what drives it instead.
4. The instrument (1 page). The instrument you would use, why not the other three, and the maximum premium it can carry.
5. The honest positive (400 words). Find a premium in your category that people once called permanent and that closed. Give the year. If you cannot find one, say so explicitly and say what you searched.
6. The reflection (500 words). What you expected, what the arithmetic said, and what the gap between those tells you about how you were reasoning before.

How it is assessed. Not on whether you found a profitable substitution. On whether the classification is falsifiable and the inputs are sourced.

A well-sourced finding that the premium is permanent and unprofitable is a first-class piece of work. A finding that it is profitable, resting on a survey rather than a price test, is not.

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SELF-ASSESSMENT

Score yourself honestly. This is for you.

The two that matter most are the fifth and the seventh. Everything else is technique and can be learned in a weekend. Those two are character, and they take a term.

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CARRYING IT FORWARD

What you will have, if you do this properly, is a small set of capacities that are rare in any room you will ever be in:

• You can put a date or a volume on "it will get cheaper," which stops an argument that otherwise runs for years.
• You can compute the maximum premium an instrument can carry, which is one division and is almost never done, including by the people designing the instrument.
• You can say a permanent number out loud without flinching, which changes what a room is able to decide.
• You can tell the difference between a moat and a burden when the two look identical on an invoice — because a cost that will not come down for you will not come down for an entrant either.

That last one is the chapter's real gift and it takes some sitting with. Every advantage that arrives with a crossover is competed away by about year six. A permanent premium, correctly priced and openly named, is the only position in this volume that nobody can wait out.

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APPRECIATIVE QUESTIONS FOR YOUR SEMINAR

1. When has one of you paid a premium on purpose for years and been glad of it — what made it worth it, and did you ever expect the gap to close?
2. Which cost in a student's life has no learning rate, and how would we prove it?
3. What is already working in how this group tells a durable cost from a temporary one — and what would it take to have more of that?
4. If everyone here wrote a falsifier for their strongest conviction this term, what would this seminar be able to discuss that it currently cannot?