research on the competition policy issue under the WTO framework 全球竞争政策：WTO框架下竞争政策议题研究：research on the competition policy issue under the WTO framework Research on the navigation freedom system under the international law framework Research on China's economic fluctuation under the DSGE framework Research on R&D supporting policy under the framework of WTO 并列题名：Research on the navigation freedom system under the international law framework 并列题名：Research on China's economic fluctuation under the DSGE framework