Rule of law as institutional substrate — contract enforcement, judicial independence, equal treatment before the law. Upstream of most other axes.
Ease of hiring/firing, collective-bargaining scope, minimum wage rigidity, temporary/permanent contract regulation.
Decree imposing martial law (stan wojenny) in Poland 13 December 1981. Suspended Solidarność, ~10,000 internments, curfew, phone-line cuts, military checkpoints, suspension of weekend newspapers. Nine miners killed at Wujek colliery 16 December 1981. Solidarność formally delegalised October 1982. Martial law formally suspended 31 December 1982, lifted 22 July 1983. Sanctions from US and Western Europe.
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.