并列题名：Empirical study of the economic effects of changes in China's population age structure Empirical study of the economic effects of changes in China's population age structure 并列题名：Empirical study on the effects of corporate brand on product evaluation 并列题名：Empirical study on the effects of RMB's real effective exchange rate on China's major macroeconomic variables 并列题名：Research on the economic effects of excise taxation in China 并列题名：Research on the economic effects of the Belt and Road initiative 并列题名：Study on the economic effects of industrial synergistic agglomeration