General government spending as share of GDP, excluding transfers already captured under fiscal.transfer_expansion to avoid double-counting.
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.
Financial-sector regulation — banking separation, capital requirements, cross-border activity rules, derivatives oversight.
The UK's tax-credits expansion of 2001-2010, anchored in the Tax Credits Act 2002, replaced Working Families Tax Credit with the more generous Child Tax Credit and Working Tax Credit and raised real awards substantially through successive Budgets, with HMRC administering refundable credits to families with children, low-paid workers, and disabled adults. The intended effect was to "make work pay", entrench in-work support, halve child poverty by 2010 (Blair pledge of 1999), and shift the British welfare model from contingency benefits toward an Earned-Income-Tax-Credit-style in-work transfer system.
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.