Immigration policy openness — work visas, family reunification, asylum processing, border enforcement posture.
Ease of hiring/firing, collective-bargaining scope, minimum wage rigidity, temporary/permanent contract regulation.
Ended EU free movement of labour on 1 January 2021 and replaced it with a single global points-based system. Skilled Worker route required a job offer at RQF-3 level, salary thresholds (initially £25,600 / going rate), English language and sponsor licence. Abolished the resident-labour-market test and lowered the skill threshold from RQF-6. Created Health and Care Worker visa (2020), Graduate route (2021), and Hong Kong BN(O) route (January 2021). Net migration paradoxically rose to record levels (~906k year to June 2023) as non-EU flows expanded to offset EU reduction.
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.