Policy posture toward energy supply security — domestic production capacity, import diversification, strategic reserves, nuclear stance, fossil-fuel mix discipline.
Environmental regulation stringency — emissions caps, standards, phase-out mandates, carbon pricing, renewable portfolio standards.
Rule of law as institutional substrate — contract enforcement, judicial independence, equal treatment before the law. Upstream of most other axes.
Decision by Minister Eric Wiebes (29 March 2018) to reduce production from the Groningen gas field — Europe's largest onshore field — to zero by 2030 in response to induced-seismicity earthquake damage to over 100,000 homes. Schedule accelerated repeatedly as damage claims grew; final closure 1 October 2023 under Rutte IV. Wind-down exposed Dutch (and European) gas import dependence, materially amplifying the 2022 energy crisis. Parliamentary inquiry Commissie van der Lee (February 2023) "Groningers boven gas" documented systemic state failure in weighing earthquake risk against gas revenue.
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.