Trade policy openness — tariffs, non-tariff barriers, FTAs, industrial protection.
Pacific Alliance established by Cartagena Framework Agreement (6 Jun 2012, Paranal) between Chile, Colombia, Mexico, Peru. Additional Protocol (10 Feb 2014) eliminated ~92% of tariff lines immediately + remaining on schedule. Integrated capital-markets MILA. Peru hosted first PA summit Nov 2011 Lima. Complemented by Peru USA FTA 2009 + Peru EU FTA 2013 + Peru China FTA 2010.
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.