General government spending as share of GDP, excluding transfers already captured under fiscal.transfer_expansion to avoid double-counting.
Rule of law as institutional substrate — contract enforcement, judicial independence, equal treatment before the law. Upstream of most other axes.
European Council agreement of 21 July 2020 on a €750bn recovery instrument (Next Generation EU) with €390bn in grants and €360bn in loans, financed by joint EU debt issuance for the first time at material scale. Negotiated over a four-day Brussels summit; the Merkel-Macron Meseberg proposal (May 2020) broke the political log-jam with the 'frugal four' (NLD, AUT, SWE, DNK). Disbursed via the Recovery and Resilience Facility against national plans 2021-2026.
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.