Trade policy openness — tariffs, non-tariff barriers, FTAs, industrial protection.
Statutory and effective corporate tax rates, treatment of depreciation, and international competitiveness.
Announced 18 Apr 1990 by Premier Li Peng — Shanghai Pudong New Area designated as opening-up development zone with SEZ-equivalent tax and regulatory treatment (15% corporate tax rate, streamlined approvals, land-use rights) despite post-Tiananmen sanctions environment. Strategic signal that reform-opening would continue; became China's premier financial centre with Lujiazui financial district, Shanghai Stock Exchange (reopened Dec 1990), Pudong International Airport.
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.