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.
Product-market regulation, entry barriers, licensing burdens, network-industry regulation, price controls.
P.L. 108-173 of 8 December 2003. Added outpatient prescription-drug benefit (Part D) to Medicare via private Part D plans; non-interference clause prohibited government drug-price negotiation; benefits began 1 January 2006. Ten-year cost estimates: $400B CBO vs later revised $534B CMS. Largest Medicare expansion since 1965.
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.