RCEP成员国水产品贸易网络演化特征及韧性分析OA

As an important source of albumin,aquatic products such as fish and shrimp play a key role in global food security and nutrition and health.With the completion and entry into force of the RCEP negotiations,the evolution of the aquatic product trade network and its resilience among member countries is of great significance for a comprehensive understanding of the RCEP aquatic product trade system.This study uses complex network analysis to construct a long-term series of RCEP trade network data sets,depicts the spatial and temporal pattern of RCEP member countries'aquatic product trade network from 2012 to 2024,and measures and discusses the evolution characteristics of RCEP member countries'aquatic product trade network from four aspects:network transmission,clustering,hierarchy and matching,aiming to deepen the understanding of RCEP aquatic product trade network resilience.The research findings include:(a)The aquatic product trade network of RCEP member countries has undergone significant spatial reconstruction,in which China continues to maintain the core position of the trade network.(b)The transmission and agglomeration of trade network are gradually increasing in fluctuation,and the trade of RCEP aquatic products is becoming more and more convenient and close.The hierarchicality shows regular fluctuations,indicating that the differences between countries with different status in the network have always existed.The matching shows the characteristics of mismatch,which reflects the trend of diversified development of aquatic products trade within member countries.Based on the above conclusions,RCEP member states should enhance the resilience of the RCEP aquatic products trade network by accelerating the implementation of the agreement,jointly improving the emergency filing mechanism,and encouraging trade cooperation based on countries.