Trade policy openness — tariffs, non-tariff barriers, FTAs, industrial protection.
Brazilian Real devaluation January 1999 (R$1.21 → R$2.00) sharply eroded Argentine competitiveness under dollar peg; Mercosur intra-trade compressed; Argentine manufacturing contracted. Exposed asymmetric-monetary-regime fragility at heart of the bloc. Contributed to 1999 Alianza electoral win + subsequent convertibility exit path.
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.