Ease of hiring/firing, collective-bargaining scope, minimum wage rigidity, temporary/permanent contract regulation.
On 3 August 1981, ~13,000 members of the Professional Air Traffic Controllers Organization (PATCO) struck in violation of federal statute 5 USC 7311. President Reagan issued a 48-hour ultimatum; 11,345 non-returning controllers were dismissed on 5 August 1981, barred from federal re-employment (lifted 1993), and PATCO was decertified by the Federal Labor Relations Authority on 22 October 1981. The episode established a private-sector union-replacement norm for the Reagan era.
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.