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.
Published 2 February 2022, the Levelling Up the United Kingdom White Paper set twelve 'missions' targeting regional convergence in living standards, R&D spend, transport connectivity, digital infrastructure, skills, health, well-being, pride-in-place, housing, crime, local leadership, and education by 2030. Created the £4.8bn Levelling Up Fund (three rounds), UK Shared Prosperity Fund (£2.6bn replacing EU structural funds), Towns Fund, freeports programme (8 freeports from 2021), and expanded devolution deals (combined authorities, directly-elected mayors). Followed by the Levelling-up and Regeneration Act 2023 codifying planning changes and environmental outcomes reports.
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.