General government spending as share of GDP, excluding transfers already captured under fiscal.transfer_expansion to avoid double-counting.
Progressivity of the personal income tax schedule, including top marginal rates, bracket spread, and targeted credits (EITC-equivalents).
2007 Finanziaria (Law 296/2006) under the Prodi II government and Finance Minister Padoa-Schioppa. ~€35bn gross consolidation mixing revenue measures (IRPEF bracket restructuring with more progressive top band, strengthened property taxation on housing and capital income), closure-of-loopholes, and selective spending cuts. Aggressive crackdown on tax evasion (studi di settore reform, electronic tracing of payments over €100) produced a ~€19bn revenue over-performance. Combined with favourable cyclical conditions, the deficit fell from 4.4% (2006) to 1.5% GDP (2007).
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.