Progressivity of the personal income tax schedule, including top marginal rates, bracket spread, and targeted credits (EITC-equivalents).
Taxation of capital income (dividends, capital gains, inheritance, wealth). Distinct from corporate rate.
Statutory and effective corporate tax rates, treatment of depreciation, and international competitiveness.
General government spending as share of GDP, excluding transfers already captured under fiscal.transfer_expansion to avoid double-counting.
The Economic Growth and Tax Relief Reconciliation Act of 2001 (Pub. L. 107-16, EGTRRA) lowered all federal income-tax bracket rates, introduced a new 10% bracket, doubled the per-child tax credit to $1,000, expanded retirement-account contribution limits, and phased out the federal estate tax through 2010. Passed via budget reconciliation with sunset clauses, the act constituted the first leg of the Bush-era tax-cut program and was projected to reduce federal revenue by ~$1.35 trillion over a decade.
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.