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.
EGTRRA 2001 (Pub. L. 107-16) phased down the federal estate tax over a decade by progressively raising the unified credit exemption from $675,000 to $3.5 million by 2009 and lowering the top rate from 55% to 45%, with full repeal scheduled for 2010 followed by an automatic sunset back to pre-2001 parameters in 2011. The Tax Relief Act of 2010 ultimately preserved a permanent estate tax with higher exemptions, ending the planned phase-out trajectory.
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.