Innovation and green concepts are important in “the 14^th  Five-Year Plan”. Governmental subsidiary as a vital policy tool in supporting enterpries' R&D can stimulate companies to boost research inputs and increase their innovative motivation. To explore how governmental subsidiary impacts the innovative performance of new energy companies, R&D investment are used as medium variables. This paper selects 106 state-owned and no-state-owned new energy companies listed in 2015 to 2019 CSMAR database and Wind database which have high-research-inputs and low-short-term-return in new strategic industries. Explained variable as companies' innovative performance, explaining variable as governmental subsidiary, adjusting variable as property ownership, medium variable as research input intensity. Governmental subsidiary on new energy sector is used to check the impacts of its on companies' innovative performance through research input intensity as medium effect and companies' property ownership as adjustment. Results show a positive relation between governmental subsidiary and new energy sector's innovative performance, a medium effect of research input intensity between the both largely varying with companies' property ownerships. Under the marketing economy, governmental subsidiary is a direct stimulus ensuring new energy company to survive and develop. This paper suggests governments supply financial and taxation policies. However, some companies unlawfully use this subsidiary on non-research input, which needs to be regulated after companies are granted the subsidiary. Compared with state-owned companies, non-state-owned obtain less resource with a weaker ability to resist market risks. This paper suggests governments support non-state-owned more to urge them to produce a higher performance.

Green development, an effective approach to coordinating ecological protection, promoting economic development and reducing carbon emission, is becoming an objective of global sustainable development and human's development focus. China's economy is entering a quality developing status under a rising resources and environmental pressures. Cities are centers for modern economic growth that makes green efficiency an unavoidable way in urban transformation. This paper uses super-efficiency undesired SBM model  to measure the green development  efficiency of 11 Yangtze River economic zone provinces (cities) and their temporal-spatial evolution, compared with their green developing efficiencies without consideration of carbon emission, and applies decision making trail and evaluation laboratory technology (DEMATEL) to identify the key factors. Carbon emission in Yangtze River economic zone has been rising over years, impacting the green developing efficiency. The green developing efficiency has fallen largely in the down-stream of Yangtze River under the environmental constraints. Yangtze River economic zone shows a rising green developing efficiency, varying with regions, down-, upper- and middle-stream downwards. Factors such as industrial structure, research input, openness, environmental regulations and vegetation coverage rate positively play an outstanding role in green developing efficiency under perspective of carbon emission. A low green developing efficiency lies in over resource consumption and over pollution emission. Environmentally, carbon emission is becoming a hard point for increasing green developing efficiency amid urban development. This paper presents suggestions on improving ecological environment and reaching carbon neutralization to ensure a higher resource utilization and a stronger environmental protection, helpful in building Yangtze River delta as a green integrated developing demonstration. 

The global competitiveness of modern companies lie not only in technology and capital, but also in global operating capacity of industrial chain, supply chain and value chain, which requires further studies on industrial chain. This paper, based on references regarding copper industrial chain globally, discusses four aspects of cooper chain in defining the concept of industrial chain, research target, research points and research methods. The concept has yet to be defined at an agreed manner. Research targets seldom cover the entire copper industrial chain. Research points does not treat industrial chain as a complicated system. Static and sole research methods prevail. This paper presents the future research direction of industrial chain on intact, dynamic, accurate models and methods.