Trade policy openness — tariffs, non-tariff barriers, FTAs, industrial protection.
Security of private property rights — formal recognition, expropriation risk, titling systems.
Law on Foreign Investment in Vietnam promulgated 29 Dec 1987 — the first among reforming socialist states; permitted three investment vehicles (business cooperation contracts, joint ventures up to 30 years, 100% foreign-owned enterprises), guaranteed against nationalisation, provided preferential tax rates (10-25% CIT). Foundation of Vietnamese FDI regime; amended multiple times 1990, 1992, 1996 progressively liberalising.
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.