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文中利用京津冀区域1994-2014年间的经济与环境数据,在收入差距视角下扩展EKC假说,对收入差距与环境质量间的关系实证检验。结果发现:1994-2004年间京津冀区域收入差距与污染物排放之间呈现的关系并不一致,且显著性不强;而2005-2014年间京津冀区域收入差距与污染物排放呈现正向驱动关系,表明2005年之后收入差距的影响作用加剧了京津冀区域环境质量的恶化。究其原因,与2004年“廊坊共识”达成以后,京津冀区域产业转移有着密切关系。因此,为保障京津冀协同发展国家重大战略实施,应抑制区域间收入差距扩大,防止“污染转移假说”效应,以实现经济与环境的协调发展。
Based on the economic and environmental data of Beijing-Tianjin-Hebei region from 1994 to 2014, this paper extends the EKC hypothesis from the perspective of income disparity and tests the relationship between income disparity and environmental quality. The results showed that the relationship between the regional income disparity and pollutant emissions in Beijing-Tianjin-Hebei region during 1994-2004 was not consistent and not significant, while in the period of 2005-2014, the regional income disparity and pollutant emissions in Beijing-Tianjin-Hebei region were positively driven Relations, indicating that the impact of the income gap after 2005 exacerbated the deterioration of environmental quality in the Beijing-Tianjin-Hebei region. The reason is that after the conclusion of the “Langfang Consensus” in 2004, there is a close relationship between the industrial transfer in Beijing, Tianjin and Hebei. Therefore, in order to ensure the coordinated development of Beijing, Tianjin and Jihsland, it is necessary to curb the widening income gap between regions and prevent the “pollution transfer hypothesis” effect so as to achieve the coordinated development of economy and environment.