Product-market regulation, entry barriers, licensing burdens, network-industry regulation, price controls.
Repsol (Spain) completed takeover of YPF June 1999 via $13B tender offer after 1993 partial IPO. Argentine state exited flagship hydrocarbon enterprise. Became Repsol-YPF. Later renationalised 2012 under Cristina Fernández (Ley 26.741) with Chevron JV 2013.
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.