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.
HM Government white paper 'Industrial Strategy: Building a Britain fit for the future' structured around five foundations (ideas, people, infrastructure, business environment, places) and four Grand Challenges (AI, ageing society, clean growth, future of mobility). Established sector deals (aerospace, automotive, life sciences, AI, construction, nuclear, creative industries, rail), UK Research and Innovation (UKRI) with £7bn additional R&D commitment, and the Industrial Strategy Council. Framework wound down by the Johnson/Sunak governments after 2021, replaced by successive 'Plan for Growth' iterations.
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.