General government spending as share of GDP, excluding transfers already captured under fiscal.transfer_expansion to avoid double-counting.
Federal Council's proposal to introduce value-added tax (Mehrwertsteuer) rejected by Swiss referendum 12 June 1977 (40.5% Yes / 59.5% No) and again 20 May 1979 (34.6% Yes / 65.4% No). VAT eventually adopted only in 1994 referendum. Demonstrated the referendum-as-tax-ratchet-limit dynamic characteristic of Swiss fiscal federalism.
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.