Jabuticaba Index®

Categorizing Brazilian singularities. From the capybara to the precatório.

Justice#11 of 26Hidden jabuticabaFictional data

Priority line

A separate line, guaranteed by law. Often longer than the regular one.

Machine translation, not yet reviewed.

01Where else it exists

Projection
Argentina: RegionalBrazilSpain: MarginalMexico: Marginal – RegionalPortugal: Widespread
Argentina: RegionalBrazilSpain: MarginalMexico: Marginal – RegionalPortugal: Widespread
  • Local presence(Marginal → Widespread)
  • Exported from Brazil(Marginal → Widespread)
  • Brazil
  • Absent (checked)
  • No data

Sovereign projection: Equal Earth centered on 60° W, south up, as on IBGE's world maps. Colonial projection: Equal Earth. Places with uncertain presence take the color of the highest possible level; the table shows the full range.

Place (4)
PlacePresenceWeightSources
PortugalWidespread1[1]
ArgentinaRegional0.5[2]
MexicoMarginal – Regional0.1–0.5[2]
SpainMarginal0.1[2]
Presence abroad1.7–2.1

02What exactly is being measured

A dedicated line or checkout, required by law, for the elderly, pregnant women, people with disabilities and people carrying small children, in public and private establishments.

03Context

The requirement has a legal basis [1].

International comparison

Portugal has a similar rule; in the other countries surveyed, priority service is rare or informal [2].

04How we got this number

Presence abroad

Sum of each place's weight: widespread = 1, regional = 0.5, marginal = 0.1. Where it only exists as a Brazilian export, the weight is multiplied by 0.5.

1.9 (1.7–2.1)
Exclusivity E

From 0 (exists everywhere) to 1 (only in Brazil), on a log scale.

0.77 (0.75–0.78)
Intensity I

How much more common it is in Brazil than in the other places where it exists.

Required in practically every establishment in Brazil; abroad, rare or limited to public services (fictional data). [2]

2–3 of 4
Rarity coefficient R

R = E + 0.5 × (I ÷ 4) × (1 − E)

R = 0.77 + 0.5 × (2.5 ÷ 4) × (1 − 0.77) = 0.84

0.84
Jabuticaba Index®
84% (82–87%)

Not part of the score

AwarenessHidden jabuticaba

How aware Brazilians are that this is rare abroad.

Considered so normal that nobody asks whether it exists in other countries. editorial judgment

0–1 of 4

Evidence grade

Computed from source types: from A (official and academic data) to D (editorial judgment). It does not change the index.

A

05Sources

  1. [1]

    Decreto Fictício nº 0.000, de 1º de abril de 2020

    Diário Oficial Imaginário · Apr 1, 2020 · Official document · in Portuguese

    example.org/fictional-decree · accessed Sep 25, 2026

  2. [2]

    A. Nonymous, P. Laceholder. A Global Survey of Allegedly Unique Things

    University of Nowhere Press · Jun 2024 · Academic

    example.org/fictional-survey · accessed Sep 25, 2026