Research on the evolution and influencing mechanism of clean energy trade pattern——Taking hydrogen as an example
This paper selects the hydrogen trade data of 125 countries(regions)worldwide from 2011 to 2022,and studies the dynamic evolution mechanism of hydrogen global trade dependence network based on the time index random graph model,and tests the heterogeneity of two groups in developed and developing countries.The re-sults show that the global hydrogen trade dependence network has the characteristics of a"small world""center-periphery",and"multi-core"structure,with a clear phenomenon of"rich club";Compared to 2011,there have been significant changes in the community structure of the global clean energy trade network in 2022.The cluster led by the United States has significantly expanded,while the cluster led by the United Kingdom is increasingly shrinking,leading to a disruption in trade between the UK and Russia;There is asymmetric dependence between China and the United States,and China plays a follower role in the internet;The evolution of network structure is influenced by both internal and external factors,and is a highly self-organizing process with strong hierarchical effects and hierarchical network clustering.Some countries in the network have two-way trade behavior with each other and tend to operate in a group structure;The impact of internal and external measures on national trade dependence varies depending on the level of economic development of the country.
NETL
NSTL
万方数据
