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[Decoupling Effect and Interactive Relationship Among Transportation Infrastructure, Economic Growth, and Carbon
Zhi-Guo Shao1, Ke-Xin Li1, Meng-di Li2
1School of Management Engineering, Qingdao University of Technology, Qingdao 266525, China.
Abstract:
The construction of transportation infrastructure boosts economic growth while facing the challenge of carbon emissions pressure. Clarifying the relationship among transportation infrastructure, economic growth, and carbon emissions is important in order to promote the realization of the goal of "dual-carbon." Based on the panel data of 30 provinces in China from 2002 to 2021, the research period was divided into four stages (2002-2006, 2007-2011, 2012-2016, and 2017-2021). The Tapio decoupling model was used to analyze the decoupling state between carbon emissions and transportation infrastructure, as well as between carbon emissions and economic growth, and the panel vector autoregression (PVAR) model was used to study the dynamic relationship and internal influence mechanism among the three in each region. The results showed that: ① The overall decoupling relationship between carbon emissions and transportation infrastructure in China showed the changing trend of "weak decoupling → strong negative decoupling → strong decoupling → weak decoupling." ② The decoupling relationship between carbon emissions and economic growth in 30 provinces only showed four states in the four stages: strong decoupling, weak decoupling, expansive coupling, and expansive negative decoupling. During the research period, the decoupling index between carbon emissions and economic growth decreased in most provinces of China, and the overall decoupling state improved, but the carbon emissions decoupling situation was unstable. ③ Transportation infrastructure had a positive impact on economic growth in each region, and both transportation infrastructure and economic growth had a positive impact on carbon emissions in each region, but the degree of impact varied by region. The results of the research can provide low-carbon development strategies for the construction of transportation infrastructure and help promote the stable, healthy, and sustainable development of China's economy.
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