General government spending as share of GDP, excluding transfers already captured under fiscal.transfer_expansion to avoid double-counting.
Progressivity of the personal income tax schedule, including top marginal rates, bracket spread, and targeted credits (EITC-equivalents).
Temporary reduction of the standard rate of VAT from 17.5% to 15% from 1 December 2008 to 31 December 2009 announced in the Pre-Budget Report of 24 November 2008 as part of the Brown-Darling fiscal stimulus package. Cost to the Exchequer ~£12.4bn over 13 months; followed by return to 17.5% and then rise to 20% under the coalition in January 2011. A rare case of a controlled consumption-tax-rate experiment in a developed economy during recession.
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.