This paper portrays a polycentric governance system by exploring the evolution of its structure and the interdependencies of its policymaking venues. It utilizes a semi-automated approach developed from the institutional grammar to analyze four policymaking venues by their 55 public policies adopted from 2007 through 2019 in the context of oil and gas development in Colorado, USA. The results show that this governance system continuously evolves through the adoption of public policies, which modifies its constellation of actors, issues, rules, and deontics (i.e., imperatives). In analyzing the content of these policies, we show how the four policymaking venues display interdependencies as well as distinct emphases. The conclusion summarizes the contributions and raises challenges for advancing knowledge about polycentricity.

中文翻译：

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通过决策场所描绘多中心的结构和演变

本文通过探索其结构的演变及其决策场所的相互依存关系，描绘了一个多中心治理体系。它利用从制度语法发展而来的半自动化方法，通过 2007 年至 2019 年在美国科罗拉多州石油和天然气开发背景下采用的 55 项公共政策来分析四个决策场所。结果表明，这种治理体系通过采用公共政策而不断发展，公共政策改变了它的行为者、问题、规则和道义（即命令）的星座。在分析这些政策的内容时，我们展示了四个政策制定场所如何表现出相互依存关系以及不同的侧重点。结论总结了贡献并提出了推进多中心知识的挑战。