Statutory and effective corporate tax rates, treatment of depreciation, and international competitiveness.
Progressivity of the personal income tax schedule, including top marginal rates, bracket spread, and targeted credits (EITC-equivalents).
Product-market regulation, entry barriers, licensing burdens, network-industry regulation, price controls.
Environmental regulation stringency — emissions caps, standards, phase-out mandates, carbon pricing, renewable portfolio standards.
In June 2017 President Trump announced US withdrawal from the Paris Agreement on climate change, citing perceived asymmetric burdens on the US economy. The formal withdrawal under Article 28 of the agreement took effect on November 4, 2020. The decision halted US participation in the Nationally Determined Contribution architecture and signalled broader rollback of federal climate-related rulemaking.
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.