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    Using data from 2008 to 2017 regarding the service sector in 11 cities of the Hebei Province, this study measures the degree of agglomeration and efficiency of service subsectors, analyzes their spatiotemporal evolution, and discusses the interactive relationship between them using panel vector autoregressive models and GMM dynamic panel model. The findings are summarized as follows: from 2008 to 2017, service subsectors in Hebei’s cities have a high degree of agglomeration and benefit significa…Read more