General government spending as share of GDP, excluding transfers already captured under fiscal.transfer_expansion to avoid double-counting.
Targeted industrial and sectoral subsidies (renewable energy, chip manufacturing, agriculture, green hydrogen, etc).
Co-hosting (with Ukraine) of UEFA Euro 2012 football championship drove a PLN 94bn infrastructure programme — motorway and expressway network expansion (A1, A2, A4), airport upgrades (Warsaw, Gdansk, Wroclaw, Poznan), four stadiums, and urban transport. Largest concentrated Polish public-infrastructure investment since transition.
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.