ENDOGENOUS DRIVERS OF DYNAMIC EVOLUTION OF GLOBAL COBALT INDUSTRIAL CHAIN NETWORK
Most countries largely depend upon external cobalt sourcing due to its low reserve and production and uneven distribution as one of strategic and critical minerals during green low-carbon transformation,which makes cobalt global trading a complicated network.This paper selects a variety of cobalt commodities at different stages to establish a global cobalt industrial chain network,and studies the endogenous drivers of structural formation and dynamic evolution of global cobalt industrial chain network by means of multiple-layered network index random graph model and time index random graph model.In cobalt industrial chain,same network endogenous structures equally impact its structural formation at different stages with varying impacting extent.Mutual-beneficial effect,structural dependence effect and time dependence effect notably impact the dynamic evolution of global cobalt industrial chain.This study expands impacting mechanisms of dynamic evolution of global trade network to multiple commodities in industrial chain,offering references for construction and restoration,risks transmission,and measures of global cobalt trading network from perspective of industrial chain.
cobalt industrial chainmultiple-layered networkdynamic evolutionmultiple-layered index random graph modeltime index random graph modelendogenous drivers
万方数据
维普
