Text Analysis of Policy Coherence between the Central Government and the Provincial Governments in the New Energy Vehicle Charging Infrastructure

In the context of China’s burgeoning new energy vehicle industry, the development of charging infrastructure plays a pivotal role. This study examines 648 new energy vehicle charging infrastructure policies enacted by central and provincial governments between 2012 and 2022, investigating the alignment between central and local policies in terms of thematic focus and policy synergies. Concerning policy themes, the coherence between central and local policies is evaluated through the analysis of high-frequency words and the construction of co-word networks. The analysis of policy coherence involves a two-dimensional framework that considers Policy tools and objectives, employing fuzzy mathematics to measure the degree of coherence. This research sheds light on the current status and challenges in the formulation of policies related to new energy vehicle charging infrastructure. Notable findings include the congruence of core principles between central and regional policies, albeit variations in the distribution of thematic content and high-frequency terms. Regarding policy coherence, supply-based policies in each region exhibit alignment with central policies, while disparities emerge in the coherence of environmental and demand-based tools. The central and eastern regions display strong coherence with central policy objectives, whereas the northeastern and western regions require improved alignment, particularly in aspects like technological quality, operational efficiency, and planning. The policy analysis underscores future pathways: provincial governments can take action through environment and demand-oriented policies, enhancing collaboration with the central government. Adapting policies to local nuances and flexibly aligning them with regional characteristics ensures the effective implementation of policies on the ground.