La Bourse / Volume IV / Nº IV.06 / Quiz, reflection, essays

Timber lodges at the foot of jagged mountains, their windows lit gold as the sun goes down over the sage. — Plate IV.06 · Quiz, reflection, essaysThe Conveyor at Three Kilometres.The powder on that belt is a waste product at one end and a raw material at the other. Nothing happens to it in between. It crosses a property line.

ASSESSMENT · Chapter IV.06 — Waste as a Category Error

Three instruments: a ten-point quiz, eight reflection questions, five essay prompts. The quiz checks comprehension rather than recall. The reflections are private and first-person. The essays are arguable from more than one side.

THE QUIZ — ten points

Four on recall.

1. State the claim that waste is an accounting category rather than a physical one, and give the mass-balance figure that supports it.

A flow is waste when its holder would pay to be rid of it and a feedstock when somebody would pay to have it; nothing in the material decides which. The support: the world economy extracts about 100.6 gigatonnes a year and cycles back 7.2 to 8.6 percent, leaving 91.9 gigatonnes uncycled — of which zero is destroyed, because mass is conserved. One mark for the claim, one for recognising that the uncycled mass still exists and only its accounting sign has changed.

2. Write the transport cost per tonne-kilometre used in the chapter, with its three inputs.

c = 2 × 1.40 / 25.0 = 0.112 euros per tonne-kilometre: an all-in HGV operating cost of 1.40 euros a kilometre, a 25-tonne bulk payload, and an empty-return factor of 2. The empty return is the mark. Omit it and every threshold doubles.

3. Write the margin formula and the threshold distance formula.

m = avoided virgin input + avoided disposal − handling, and d_max = m / c. Credit an answer that also gives the complete form, m − T/(Q·L) − p·C/Q > c·d.

4. What is Chertow's three-two heuristic, and what does it exclude?

At least three different entities exchanging at least two different resources, none of them primarily in the recycling business. It excludes a single bilateral deal and it excludes an ordinary recycling contract — the point being to identify a system with its own resilience rather than one dependency.

Four on application.

5. Your site pays a gate fee of 82 euros a tonne on a stream that a neighbour 40 kilometres away could use. Your tonnage is 14,000 a year. A colleague says the haulage will eat the benefit. Answer them.

At c = 0.112, forty kilometres costs 4.48 euros a tonne. Against a gate fee of 82 that is under 6 percent of the disposal saving alone, before the value to the receiver. The stronger answer notes where the money actually comes from: on a high-gate-fee stream the disposal term dominates and distance is nearly irrelevant, which is why a landfill tax functions mechanically as an industrial symbiosis subsidy.

6. Two plants share a wall. The exchange is technically perfect. The flow is 150 tonnes a year and the margin is 37 euros a tonne. Diagnose it.

It fails, and distance has nothing to do with it. Q_zero = T/(L·m) = 40,000/(5 × 37) = 216.2 tonnes a year, and 150 is below it: the contract costs more than the material is worth at zero distance. The remedy is not a better lorry. It is a cheaper contract — a sector-standard agreement, an aggregator, or moving the exchange inside a single legal entity so that T collapses.

7. A regulator reclassifies your residue from waste to by-product under Article 5 of the Waste Framework Directive. Nothing physical changes. What changes commercially, and by how much in principle?

T falls — no waste permit variation, no waste carrier chain, lighter documentation — and through T, Q_zero falls proportionally. Halve T and you halve the minimum viable flow; at 20,000 euros, Q_zero on a 37-euro margin drops to about 108 tonnes a year. Full marks require the conclusion: the reclassification creates exchanges that did not exist, without touching a molecule. "Zero waste" is a statement about contracts.

8. Why is a fixed price a poor choice for a ten-year by-product offtake, and what should replace it?

Because over ten years the virgin substitute's price will move, and a fixed price converts a shared benefit into a bet on a commodity index. Whichever party loses the bet stops cooperating, and cooperation is the asset. Replace it with indexation to the delivered price of the virgin substitute, less a stated discount — so both parties keep a share in every price environment.

Two that require the arithmetic to be done.

9. A stream has a margin of 22 euros a tonne. The flow is 900 tonnes a year. Contracting costs 30,000 euros over a four-year term. The counterparty is 40 kilometres away. Does it pay, and what happens if the contracting cost doubles?

Transaction per tonne: 30,000 / (900 × 4) = 8.33 euros a tonne. Net margin 22 − 8.33 = 13.67. Threshold 13.67 / 0.112 = 122.0 kilometres, against an actual 40 — it pays, with 82 kilometres of headroom. Double the contracting cost to 60,000 and transaction per tonne is 16.67, net margin 5.33, threshold 47.6 kilometres. It still pays, by 7.6 kilometres. The point of the question is how fast the headroom goes: doubling one fixed cost took 61 percent of the viable range away.

10. The same stream. If the counterparty stops producing it, you spend 3,000,000 euros reconfiguring, and you judge the annual probability of that at 4 percent. The flow available to carry the risk is 12,000 tonnes a year. Price the dependency and give your recommendation.

p·C/Q = 0.04 × 3,000,000 / 12,000 = 10.00 euros a tonne. Against the net margin of 13.67, that is 73.2 percent of it, leaving m_net = 3.67 euros a tonne. The recommendation is not "do not do it" — it is that the exchange cannot be signed without either a notice period matched to the reconfiguration time, a funded reserve out of the margin, or a qualified alternate source. Any one of the three converts a priced risk into a managed one; none of them is expensive relative to 10 euros a tonne.

REFLECTION — eight questions, for one person and a pen

These are not for a room. Write the answers by hand if you can; the slowness is the point.

What do you throw away, at home or at work, that you know somebody would want — and what actually stops you? Name the real obstacle, not the tidy one.

Where have you accepted a category you inherited without ever testing it? Not only waste — any word in your working vocabulary that decides what gets attention before anyone thinks.

Think of something you once treated as worthless that turned out to have value. What did you learn about how you assign value, and have you applied it since?

Where in your life is the cost of the arrangement larger than the thing being arranged? What would a simpler form look like?

Who are you dependent on in a way that would be expensive to unwind, and have you ever priced it? Write the number, even roughly, and notice what happens when it is on paper.

What would it feel like to have a neighbour, professionally — somebody whose work you understand well enough to know what they need in February?

Recall something that failed because nobody had estimated the probability of a partner changing. What would a thirty-six month notice period have been worth?

What is the smallest good thing you know of that nobody does because it is not worth the paperwork? Write down what the paperwork would have to cost for it to happen.

ESSAY PROMPTS — five

Each is arguable from more than one side. Each requires at least one source the chapter cites and at least one it does not.

1. The subsidy hiding inside the gate fee. The chapter's margin formula makes avoided disposal a full term, which means a landfill tax functions mechanically as an industrial symbiosis subsidy. Argue either that this is the most efficient instrument available — it prices an externality and creates exchanges in one move — or that it produces symbioses that exist only while the tax does, and would unwind if it fell. Use the NISP material and Lombardi and Laybourn, and at least one source on landfill tax incidence or waste policy evaluation that the chapter does not cite.

2. Planned parks and uncovered kernels. Chertow's position is that symbioses are uncovered rather than designed, and the record of the 1990s eco-industrial parks supports it. Argue the other side: that the failures were failures of execution, sequencing and patience rather than of the planning idea, and that a designed symbiosis is achievable with different instruments. Engage Chertow (2007) and Gibbs and Deutz directly, and find at least one post-2015 account of a planned industrial park that did achieve exchange.

3. Dependency, hold-up and the boundary of the firm. Williamson's asset specificity predicts that parties who build plant around each other will either integrate or write long contracts. Kalundborg did neither in any general way — it wrote bilateral deals and stayed separate. Argue whether that is evidence against the transaction cost framework or evidence that geographic clustering substitutes for vertical integration. Use Coase or Williamson and the Ehrenfeld and Gertler case, and one source on hold-up or relational contracting that the chapter does not cite.

4. Whose figures are these? Both flagship datasets in this chapter — Kalundborg's annual volumes and NISP's five-year outputs — are self-declared with boundaries set by the reporting body, and the most-cited academic account of NISP was written by its own architects. Argue whether that disqualifies them, qualifies them, or is simply the ordinary condition of evidence about industrial practice. Use Jensen and colleagues and the Circularity Gap Reports, and one source on self-reported environmental performance or corporate disclosure quality that the chapter does not cite.

5. Zero waste as a statement about contracts. The chapter's central cut is that zero waste describes a state of contracting rather than a state of matter. Argue either that this is a clarifying reframe that tells practitioners exactly where to spend, or that it is a deflationary move that lets material designers off the hook — since designing a product that needs no contract to be recovered is a genuinely different achievement from finding a counterparty for the mess. Use the Waste Framework Directive and Frosch and Gallopoulos, and one source on design for disassembly, extended producer responsibility or material passports that the chapter does not cite.