Rule of law as institutional substrate — contract enforcement, judicial independence, equal treatment before the law. Upstream of most other axes.
General government spending as share of GDP, excluding transfers already captured under fiscal.transfer_expansion to avoid double-counting.
Boko Haram abducted 276 schoolgirls from the Government Secondary School in Chibok, Borno State on the night of 14-15 April 2014. Sparked the global #BringBackOurGirls campaign and intensified scrutiny of federal counter-insurgency failure. Followed the May 2013 state-of-emergency proclamation in Borno, Yobe and Adamawa, Boko Haram's 2014 declaration of an Islamic caliphate over parts of north-east Nigeria, and coordinated attacks displacing over 1.5 million people. A Multinational Joint Task Force with Chad, Niger and Cameroon reactivated early 2015 pushed back territorial control, but Chibok became the defining campaign liability of the 2015 election lost by Jonathan.
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.