Empirical study on the macro-economic effects of national debt in China 并列题名：Empirical study on the macro-economic effects of national debt in China Study on the economic effects of local government debt in China Empirical study on the operation mechanism of criminal procedure in China Empirical study on the economic growth effect of financial agglomeration Research on the economic effects of excise taxation in China empirical study on the emerging international enterprises 并列题名：Study on the regional economic effects of fiscal decentralization in China Empirical study on the speech acts in the criminal courts of China Empirical study on FDI, economic growth and CO2 emission in China