Rule of law as institutional substrate — contract enforcement, judicial independence, equal treatment before the law. Upstream of most other axes.
Size of cash and near-cash transfer programmes (unemployment benefits, means-tested assistance, universal child benefits). Architecturally distinct from forced-saving schemes — see condition welfare_architecture.
General government spending as share of GDP, excluding transfers already captured under fiscal.transfer_expansion to avoid double-counting.
Spain's Salario Mínimo Interprofesional (SMI), set annually by Royal Decree under Article 27 of the Estatuto de los Trabajadores, was raised by the Rajoy government in 2017 (1.0% to €707.6) and 2018 (4.0% to €735.9) following social-partner agreements, after years of post-crisis freezes. The successor Sánchez government raised it to €900 in 2019. The intended effect was to support low-wage incomes and reduce in-work poverty after the eurozone-crisis squeeze.
Per invariant 3, reforms are scored by what they did on each channel-separated axis, not by the party that enacted them. This fingerprint is how the policy-match engine finds historical analogues.
Explicit links are curated by the author. Inferred links are hypotheses in the library that test the same axes this policy moved — the framework's answer to "what does the data say about a policy like this?".
Ranked by axis-fingerprint overlap with this policy. Direction match bolded — those are the closest historical analogues. Shape of the match is what drives policy-outcome comparison, not the country or party label.