Targeted industrial and sectoral subsidies (renewable energy, chip manufacturing, agriculture, green hydrogen, etc).
General government spending as share of GDP, excluding transfers already captured under fiscal.transfer_expansion to avoid double-counting.
Ishiba-era relaunch of regional revitalisation (chihō sōsei) policy, framed as Regional Revitalisation 2.0 to distinguish it from the original Abe-era 2014 programme. Adopted by Cabinet decision on 24 December 2024 as a Basic Policy, with a doubled annual budget target over ten years (roughly ¥2tn/year at steady state), reinforced subsidies to municipalities for population-retention measures, a new "Regional Revitalisation 2.0 Grant" broader than the prior chihō sōsei kōfukin, expanded DX (digital transformation) and inbound-tourism support, and consolidation of overlapping rural subsidy programmes. Ishiba, a former Minister in Charge of Overcoming Population Decline and Vitalising the Local Economy (2014-2016), positioned the framework as a signature priority.
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.