Abstract
The rule of law is foundational to Public Administration (PA), yet the field has long lacked a clear conceptualization of what the rule of law entails and, furthermore, an objective measurement system. Grounded in the “thin” conception of the rule of law and integrated within the public administration context, we propose a three-dimensional framework: Regulations, Organization, and Decision-making. We operationalize this framework as the Public Administration Rule of Law Index (PARLI), a composite measure built from three level-1 and seven level-2 indicators, using objective data to ensure replicability. We apply this index to measure the rule of law in China's 31 provinces (2020–2024) and validate it by examining its relationship with key socioeconomic outcomes. The results align with theoretical expectations: PARLI scores are positively correlated with entrepreneurship and innovation but negatively correlated with government responsiveness. These findings simultaneously confirm the measure's validity and reveal the inherent tensions in applying the rule of law within the public administration. This study makes two primary contributions. First, it provides scholars with a coherent framework to overcome knowledge fragmentation and cumulate scientific inquiry. Second, it offers a replicable and objective measurement toolkit for policy analysis.
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