Research on the economic effects of China's new rural pension system Research on the economic effects of Chinese national debt Research on the economic effects of excise taxation in China Research on the economic effects of Chinese enterprises' outward foreign investment Research on the distribution effect of China's fiscal and taxation system Research on the economic effects of the Belt and Road initiative Research on the construction of China's social credit supervision system Research on the economic effect of offshore service outsourcing 并列题名：Research on the economic effects of excise taxation in China Research on the structural optimization of China's multi-pillar pension system