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This paper selects the panel data of 30 provinces and cities in China from 2009 to 2017, and uses the threshold effect model to investigate the non-linear relationship between producer services agglomeration and industrial structure upgrading by taking the agglomeration degree of producer services lagging one year as the threshold variable. The results show that the effect of producer services agglomeration on industrial structure upgrading shows an inverted “U” nonlinear relationship, that is, there is an optimal agglomeration level, and the agglomeration effect has a lag.

The Influence of Producer Service Industry Agglomeration on Industrial Structure Upgrading: Empirical Analysis Based on Threshold Model