Research on the economic growth effect of manufacturing firm dynamics in China 并列题名：Research on the economic growth effect of manufacturing firm dynamics in China Research on the economic effects of excise taxation in China Research on the economic performance and its influencing factors of airlines in China 并列题名：Research on the economic effects of excise taxation in China Research on the economic effect of rural social security expenditure in China Research on economic growth effect of FDI spatial agglomeration in producer service Research on supply chain network effect of manufacturing cluster