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.
Housing-market reform package agreed in the VVD-PvdA Bruggen Slaan coalition agreement and subsequent Housing Accord (Feb 2013): mortgage-interest deduction (Hypotheekrenteaftrek) reduced by 0.5pp annually from 2014 for highest tax-bracket, annuity-repayment requirement for new loans to qualify, maximum loan-to-value ratio declining 1pp/year from 106% to 100% by 2018, and a verhuurderheffing tax on social-rental-sector landlords starting €1.7bn/year rising to €2.5bn/year to fund reform transition. Aimed at reducing structural housing-market distortions flagged by IMF/OECD.
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.