Transparency score
Score from 0 to 100 measuring what a producer DISCLOSES, not how good they are: profile completeness 20 %, lots signed over twelve months 30 %, valid certifications 30 %, recency of activity 20 %. An impeccable but silent producer scores low — by design, since the measure is about disclosure.
Not to be confused with
- Trust Index
Score from 0 to 100 qualifying an ACTOR, aggregated from its verifiable proofs: anchored attestations 30 %, certifications 27 %, HACCP audits 18 %, carbon transparency 15 %, B2B endorsements 10 %. Recomputed on demand — freshness is what makes it credible. Tiers: platinum ≥ 85, gold ≥ 70, silver ≥ 50, bronze ≥ 25, otherwise unrated.
- Proof score (discovery)
RANKING score computed from the already-loaded fields of a listing, so a result list can be ordered without one store read per entity. It shares the tier scale of the other scores but not their inputs: for the same listing it may differ from the transparency score. The list badge is therefore labelled « proof », never « transparency ».
- Trust capital
Per-owner aggregate of the signed attestations they have accumulated: a volume, not a grade. Where the Trust Index weights and normalises to a hundred, trust capital counts what has been produced and surfaces it inside its owner’s workspace.
What the blog says
- The Market for Lemons: What Akerlof Tells Us About Traceability
George Akerlof’s (Nobel laureate 1970) “market for lemons” theory explains why, absent proof, a product’s invisible quality ends up priced at the market average — and how traceability answers that.
- Why Opacity Pays
Ronald Coase (Nobel 1991), transaction costs, and what happens to food supply chains when verification stops costing anything: the opacity rent, and its foretold end.
- Who Sorts, When No One Proves Anything?
Joseph Stiglitz (Nobel 2001), screening, and why food sovereignty begins with verification: when the seller doesn’t signal, it’s the buyer who organizes the sorting.
- Nobody Is Cheating — And That’s Exactly the Problem
John Nash, the prisoner’s dilemma and the stag hunt: why an entire food chain coordinates on price without a single one of its players behaving badly.
- Du Normalbaum au label : pouvoir déplier la simplification
Un label rend une réalité complexe lisible, et c’est une fonction essentielle. Reste à pouvoir remonter derrière la catégorie — sans la supprimer ni la discréditer.
- La moelle inventée
Mirapolis avait dressé un Gargantua de 33 mètres. Rabelais avait prévenu : le risque n’est pas seulement de rester à la surface, c’est d’inventer le fond.
- Opacity Is Not a Lie
What a seventeenth-century philosopher has to do with traceability: why the opacity of an origin is not fraud but mutilated knowledge, to be restored rather than punished.
Where it is implemented
lib/transparency-score.ts- /fr/score-transparence