Study on the global polysilicon trade networks'dynamic evolution and its driving forces under the global carbon neutrality target
The structure of the worldwide trade network for polysilicon has undergone signifi-cant modifications as a result of the PV industry's explosive growth under the global carbon neu-trality target.Based on the complex network theory,this research investigates the dynamics of the global polysilicon trade network and its driving factors.The main conclusions are as fol-lows.Firstly,the network's overall average path distance is tiny and the clustering coefficient is high,the traits of a"small world"are demonstrated;the"rich club"is evident because the nodal countries'in and out degrees kernel density is single-peaked to the right and follows a long-tail feature;Secondly,China is one of the key core countries,and the network's Core—Periphery structure is constant,with a rising share of core countries and a declining share of periphery countries;Thirdly,the QAP regression results demonstrate that the combined effects of economic size,trade scale,installed PV capacity,CO2 emissions,and environmental performance have a significant impact on the dynamic evolution of polysilicon trade networks.Differences in eco-nomic size and trade scale across nations have a large limiting effect,but differences in PV instal-lation,CO2 emissions,and environmental performance have a considerable stimulating effect.China should seize the chance to become the hub of its global trade network,capitalize on geo-graphic closeness to deepen trade relations,inject more"China factors"and actively promote global collaboration and chain integration in the PV industry.
global polysilicon tradecomplex networksdynamic evolutionQAPglobal car-bon neutrality
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