Research on Optimization of Investment in China's Industries under Low-Carbon Constraints

Nowadays, China is continuously advancing its low-carbon economic development strategy. However, problems such as unbalanced development of the industrial structure have impeded China's economic low-carbon development. Most existing research just consider the relationship between industrial structure and economic development, this article optimizes the industrial structure under low-carbon background from the perspective of macro investment. We select five major sectors-agriculture; industry; construction; transportation; and wholesale, retail, housing and catering-as research objects, and use factor analysis methods to analyze the current status of low-carbon development in their industrial structures. Through a multi-objective optimization model, industrial structure optimization objectives are presented, and investment is then optimized based on the matching relationship between the industrial and investment structures. This study found that the proportion of investment in Chinese sectors has gradually improved over the past five years, but problems remain. The government needs to regulate and control at a macroeconomic level: control the proportion of investment in industry and transportation; increase investment in agriculture, construction, and wholesale, retail, housing and catering; and gradually increase the degree of adaptation of industrial and investment structures.