关键词: 服务业集聚 , 拥塞效应 , 集聚效应

Abstract: Based on twostep system GMM method, this paper empirically analyzed the dynamic impact of service agglomeration on service labor productivity by using the urban panel data of 261 cities in China from 20002011. The results indicated as follows. Firstly, service agglomeration significantly promoted labor productivity growth in service sector, while the lagging one would have negative correlation between productivity. This result suggested service agglomerations congestion effects and agglomeration effect would achieve different equilibrium situation at different times. Secondly, crossmultiplication item between service agglomeration and lagged GDP per capita was not conducive to improve service productivity，the positive impact on service industry would be influenced by economic development levels. Thirdly, manufacturing agglomeration, physical capital and human capital were conducive to enhance service labor productivity. In addition, this paper studied the dynamic productivity effects of urban service agglomeration in the eastern, central and western region and suggested the corresponding policies and measures.

Key words: ervice agglomeration , congestion effects , agglomeration effects