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.
Tax reform package effective 1 Jan 2016 — restructured PIT from three marginal-rate brackets to seven, lowering entry-rate from 36.5% to 25%, introducing a time-limited 55% top rate above EUR 1m (sunset 2020, later extended). Partially financed by bank-secrecy easing for tax administration, higher capital-gains rates on real-estate disposals, and fraud-control measures.
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.