This paper, based on 2004 to 2016 panel data of China's 282 prefectures, establishes a GMM model and spatial Durbin model to study the impacts and spatial overflowing effect of financial pressure and industrial structural adjustment on green economic efficiency from different areas, types and vicinities. Green economic efficiency is largely restrained by financial pressure, but boosted by appropriate industrial structure, and improved by financial pressure and upgraded industrial structure in the eastern and central China, but outstandingly restrained by upgraded industrial structure in the western China. Green economic efficiency is promoted by both industrial structuralrationalizations, also promoted by financial pressure and upgrading industrial structure in resource-based cities, otherwise in non-resource-based cities. Industrial structural rationalizing and upgrading industrial structure largely exert a spatial overflowing effect on green economic efficiency.

Study on HBO's economic connection can not only promote integrated construction and coordinated development of city group, but also help sustainable development of resource-based city group. This paper, based on a case study on HBO city group, uses social network method to establish HBO's economic connection network, and measures its network density, centrality, and inner condensation sub-group. Results reveal that their economic connection is increasingly close and complicated, not high in network density compared with developed city group. Their economic development is asymmetric and imbalanced, but inside city group direct connection among each member is steadily increasing, which may form condensation sub\|group out of locality limit. 