Trade policy openness — tariffs, non-tariff barriers, FTAs, industrial protection.
Targeted industrial and sectoral subsidies (renewable energy, chip manufacturing, agriculture, green hydrogen, etc).
Singapore opened Changi Airport in 1981 and paired airport capacity, Singapore Airlines, tourism promotion, and logistics openness to reinforce a high-connectivity open-city model.
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.
Direct link to the second-wave Singapore air-hub test.