Research on the impact of global value chain embeddedness on green innovation of China's manufacturing sector 并列题名：Research on the impact of global value chain embeddedness on green innovation of China's manufacturing sector Research on the length of global value chains of China's manufacturing sectors Research on the impact of emission trading on green innovation of Chinese enterprises 并列题名：Research on the length of global value chains of China's manufacturing sectors Research on the impact of trade system on foreign investment and open innovation model in manufacturing industry 并列题名：Research on the impact of emission trading on green innovation of Chinese enterprises Research on the digitalization of global value chain and the improvement of international division of labor status of Chinese manufacturing industry Research on the impact of industrial agglomeration on urban innovation and its mechanism Research on the impact of global value chains participation on carbon emissions and carbon productivity in China