Trade policy openness — tariffs, non-tariff barriers, FTAs, industrial protection.
Rule of law as institutional substrate — contract enforcement, judicial independence, equal treatment before the law. Upstream of most other axes.
Sunshine Policy (햇볕정책) engagement doctrine launched by Kim Dae-jung inauguration February 1998. Core principles: no tolerance for armed provocation, no intent to absorb the North, active pursuit of cooperation. First-ever inter-Korean summit held Pyongyang 13-15 June 2000 between Kim Dae-jung and Kim Jong-il; 15 June Joint Declaration signed. Operational cooperation: Mt Kumgang tourism opened November 1998 (Hyundai Asan), Kaesong Industrial Complex groundwork agreement August 2000 (operational from 2003), family-reunion meetings, railway reconnection plans. Kim Dae-jung awarded Nobel Peace Prize 2000. Post-summit "Hyundai slush-fund" scandal alleged $500m transfer from Hyundai to North Korea via illegal channels.
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.