渔业中间品增值贸易网络特征及数字化影响

The Evolutionary Characteristics of Value-added Trade Networks of Fisheries' Intermediates and the Influence of Digitalization

依据WWZ方法和WIOD数据库,构建渔业中间品增加值贸易网络,并首次运用社会网络方法分析该网络的演化结构特征,运用QAP的方法研究传统引力模型的影响因素和数字经济投入对渔业增加值贸易网络结构特征的影响。研究发现:在渔业中间品增加值贸易网络中,国家间联系更为紧密,形成了核心边缘结构;美国、加拿大处于“织网者”地位,中国虽然属于核心国家,但其仍处于参与者地位;中国与不发达国家的双边影响增强,但美国对中国的影响较大,中国对美国的影响微乎其微;中国在区域渔业中间品增加值贸易网络中的地位仍较弱,尤其是在区域内扮演协调人和代理人角色的地位较弱;除原有的引力模型影响因素外,数字经济投入对渔业中间品增加值贸易网络也有正向影响。

Based on the WWZ method and the WIOD database,this article constructs value-added trade networks of intermediate products for fisheries,and uses the social network method to analyze the evolutionary structure of these networks for the first time,and uses the QAP method to study the influence of influencing factors of the traditional gravity model and the input of digital economy to these networks.It is found that in the value-added trade networks of fisheries' intermediate products,countries are more closely connected,and the core-edge structure is formed;the United States and Canada are in the status of "net weavers",and China is still a participant although it is a core country;the bilateral influence between China and developing countries has increased,but the United States has a greater influence on China,and China's influence on the United States is minimal;China's position in the value-added trade networks of fisheries' intermediates in the region is still weak,especially in the role of coordinator and representative in the region;in addition to influencing factors of the original gravity model,digital economic input also has a positive impact on the value-added trade networks of fisheries' intermediates.