Atlas / Method

Method, and what this cannot do

An instrument built to expose overconfident classification has an obligation not to be overconfident.

The six axes

EC · Economic organisation

common ownership, allocation by plan  ←  −10  ·  0  ·  +10  →  private property, allocation by market

Who owns productive assets and what decides their use. The negative pole abolishes private ownership of the means of production and allocates by plan or by need; the positive pole leaves ownership private and lets prices allocate. The midpoint is a genuine mixed economy, not an absence of opinion.

Why it is separate. This is the axis almost every media use of "left" and "right" claims to be measuring, and the one it least often actually measures.

CU · Social and cultural order

pluralist, egalitarian, open to revision  ←  −10  ·  0  ·  +10  →  traditional, hierarchical, inherited

How society should be ordered below the level of the state: family, religion, gender, sexuality, national culture, and whether inherited norms carry authority. Political science measures a version of this as the GAL–TAN dimension, and since roughly 2010 it has been the stronger predictor of party competition in Europe than economics.

Why it is separate. A party can be far left here and far right on economics. Several of the fastest-growing parties in Europe are exactly that.

AU · Organisation of power

dispersed, checked, contestable  ←  −10  ·  0  ·  +10  →  concentrated, unchecked, monist

Whether authority is divided among institutions that can genuinely stop each other — courts, legislatures, press, opposition parties, federal units — or gathered into a single centre that claims to embody the whole. This is a question about method of rule, and it is logically independent of every policy question.

Why it is separate. This is the axis that collapses first in ordinary argument, and the one that carries almost all of the information people think they are conveying when they say "extreme".

SC · Scale of decision

local, federal, subsidiary  ←  −10  ·  0  ·  +10  →  central, unitary, supranational

At what level binding decisions are taken: the commune, the province, the nation, or a body above the nation. Distinct from concentration, because a decision can be taken centrally by an accountable parliament or locally by an unaccountable strongman.

Why it is separate. Movements regularly swap ends of this axis without changing any other position. The Lega moved from secessionism to nationalism in a decade.

ID · Rule of membership

universal and civic  ←  −10  ·  0  ·  +10  →  ascriptive and closed

Who counts as a full member of the political community, and on what grounds. The negative pole admits on residence, consent or common humanity; the positive pole admits on birth, blood, faith, language or lineage.

Why it is separate. Historically this axis moves independently of economics. The most collectivist economies of the twentieth century include both the most universalist and the most exclusionary regimes on record.

CH · Method and tempo

incremental, lawful, persuasive  ←  −10  ·  0  ·  +10  →  rupture, coercive, imposed

How the programme is to be achieved and how fast: by election, argument and amendment, or by rupture, decree and force. It combines the classic reform-versus-revolution question with the question of whether political violence is legitimate.

Why it is separate. Two organisations with nearly identical programmes can sit at opposite ends here. Mensheviks and Bolsheviks differed by roughly eight points on this axis and by one point on economics.

How positions were assigned

Each organisation was scored on all six axes against its programme where one exists, its record in office where it held office, and the settled findings of the comparative-politics literature where the two disagree. Where a movement changed substantially, the period stated in the record is the period coded. Confidence is recorded on every entry.

Six things this instrument cannot honestly claim

The measurement this atlas does not have

Every professional dataset of this kind reports inter-coder reliability: hand two independent coders the same case and the same codebook, and measure how far apart their scores land. It is the standard evidence that a coding scheme is precise enough to be used by someone other than its author. The Chapel Hill surveys report it. The Manifesto Project reports it. V-Dem reports it.

This atlas cannot report it, because it has one coder. No amount of auditing fixes that, since the auditing is done by the same person. Everything else on this page is a substitute of some kind — the codebook fixes what each score should mean, the evidence layer attaches something checkable to every cell, the external validator tests the output against instruments built by other people, and the challenge mechanism invites correction. None of them is the missing number.

Two things exist in place of it. The first is a check that can fail and did: the codebook names example cases at each anchor, and those cases must actually sit at that anchor. Ten of them did not the first time it was run — the Pirate Parties were cited as the cultural midpoint while scoring −07. All were corrected and the check now runs on every page load.

The second is an instrument that produces the real measurement one reader at a time. The interactive atlas draws a cell at random, shows the axis, its codebook anchors and the evidence attached to that cell with the score withheld, and asks you to assign one. Your score then appears beside the atlas score. The rationale is held back until you commit, because 86% of rationales state their own score; the evidence artefacts are shown, because only 4 of the 2,075 do.

A single reader agreeing with a single coder is not reliability. It is, however, the only honest way to find out whether the codebook is precise enough that the same evidence produces the same score in someone else's hands. Code a cell yourself.

The coding protocol, so it can be replicated

1. Take the organisation's programme where one exists, its record in office where it held office, and the settled findings of the comparative-politics literature where the two disagree.
2. Fix the period. Where a movement changed substantially, code the period stated in the entry rather than the movement's whole history, and record the others separately.
3. For each axis, read the codebook anchors before assigning a score, not after.
4. Attach at least one artefact per cell that a third party can check without taking anyone's word for it: a documented act, a clause of a programme, a statute, a court finding, or a published dataset measurement.
5. Declare confidence. Low means recent and moving, thin independent reporting, or specialists disagreeing about the classification rather than the facts.
6. Where the disagreement among specialists is the point, mark the entry contested and give both readings rather than choosing one.

The tests it runs against itself

The interactive atlas computes, on every page load: the correlation between all fifteen axis pairs; the coverage of the sample by region, era and confidence; the evidence coverage and its composition; a trajectory integrity check; a sixteen-point data integrity check; a merge test that builds the five-axis model its critics propose and reports how little changes; and a leave-one-out test across all six axes. Open the audit.

Challenge a score

Any cell can be disputed. Open the organisation in the interactive atlas, expand the evidence panel, and use the challenge form. It produces a structured record with the current score, your proposed score and your evidence. A challenge with an empty evidence field is a preference, which is a different thing and is triaged as one.