Trade policy openness — tariffs, non-tariff barriers, FTAs, industrial protection.
General government spending as share of GDP, excluding transfers already captured under fiscal.transfer_expansion to avoid double-counting.
Rule of law as institutional substrate — contract enforcement, judicial independence, equal treatment before the law. Upstream of most other axes.
Five underground nuclear detonations at Pokhran, Rajasthan on 11 and 13 May 1998 (codename Operation Shakti): one fission, one thermonuclear, three sub-kiloton. India formally declared itself a nuclear-weapon state. Triggered US Glenn Amendment sanctions (barring non-humanitarian aid, cutting military cooperation), Japan ODA freeze (~¥100bn/year), multilateral lending restrictions. Pakistan responded with Chagai-I/II 28/30 May 1998. India-US Jaswant-Talbott dialogue 1998-2000 began normalisation; most sanctions rolled back late 1998, fully lifted post-9/11.
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.