Progressivity of the personal income tax schedule, including top marginal rates, bracket spread, and targeted credits (EITC-equivalents).
General government spending as share of GDP, excluding transfers already captured under fiscal.transfer_expansion to avoid double-counting.
OBRA 1990 (Pub. L. 101-508), signed 5 November 1990. Raised top individual marginal rate 28%→31%; 10% luxury excise (boats, jewelry, planes); +5¢/gal motor fuel tax; AMT expanded; Medicare payroll-tax wage cap raised. Budget Enforcement Act Title XIII created PAYGO scorekeeping and discretionary spending caps through FY1995. Projected $496B deficit reduction over five years. Violated Bush's 1988 "read my lips: no new taxes" pledge; Gingrich-led House Republicans split from the President.
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.