Progressivity of the personal income tax schedule, including top marginal rates, bracket spread, and targeted credits (EITC-equivalents).
General government spending as share of GDP, excluding transfers already captured under fiscal.transfer_expansion to avoid double-counting.
Act on Partial Revision of the Consumption Tax Law etc. (Law No. 68 of 2012), passed 10 August 2012 under the Noda cabinet via three-party agreement with LDP and Komeito (15 June 2012), raising the consumption-tax rate from 5% to 8% effective 1 April 2014 and from 8% to 10% effective (after two delays under successor Abe) 1 October 2019. Revenue earmarked for social-security financing (pensions, healthcare, long-term care, child care) in the parallel Social Security Comprehensive Reform Act. Most significant Japanese tax-policy change of the 2010s; provided the fiscal anchor for Abenomics macro policy and for the social-security framework.
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.