关键词: 大型企业 , 中小型企业 , 经济增长 , 经济波动

Abstract: The purpose of this paper is to explore the role of different scale enterprises in regional economic development. For this reason, based on the 2001—2016 China Industrial statistical yearbook, with the help of Lee et al., (2013) analysis framework, this paper tests the different roles of largescale industrial enterprises and small and mediumsized industrial enterprises in the regional economic development. The results show that: (1) Compared with small and mediumsized enterprises, large enterprises are more conducive to promoting regional economic growth and mitigating regional economic fluctuations. This positive effect has a typical threshold effect, which will be further enhanced by the scale expansion of large enterprises. (2) The development of different scale enterprises at the same time is conducive to regional economic stability, but the uncoordinated development between largescale enterprises and small and mediumsized enterprises in China has significantly inhibited the further growth of regional economy. (3) In terms of scale, there is a threshold ratio between large enterprises and small and mediumsized enterprises in China. Beyond this ratio, the economic growth effect and economic stability effect of large enterprises and small and mediumsized enterprises will be enhanced. It is of vital practical significance for the regional economic development of our country to do well in the development of largescale enterprises and invigorate the ecological construction of enterprises.

Key words: large enterprises , SMEs , economic growth , economic fluctuations