摘要：以义乌商城大道为例，基于价值共创视角，采用SNA方法探索重大工程全生命周期主体间的资源流动和互动规律。首先，厘清重大工程价值共创多元异质主体的价值主张。接着，构建项目前期、建设和运营三个主要阶段的价值共创网络模型，计算网络密度、中心度和中心势三个结构指标，分析重大工程全生命周期价值共创主体关系的动态演化规律。最后，提出三个价值联盟策略，包括均衡政府和社会资本的力量格局、重视项目全生命周期的价值创造和将社会公众纳入价值创造体系。

关键词：重大工程；价值共创；社会网络分析；动态关系网络

Abstract：Uses social network analysis（SNA）to explore the resource flow and interaction behavior among stakeholders in the whole life cycle of megaprojects based on the perspective of value co-creation，taking Yiwu Mall Avenue as an example. Firstly，clarifies the value proposition of multiple stakeholders of value co-creation in megaprojects. Next，constructs a dynamic network model of value co-creation in three main stages of the project，including pre-construction，construction and operation stages，calculates three structure indexes of network density，centrality and centralization，and analyzes the dynamic evolution rules of the relationship between stakeholders of value co-creation in the whole life cycle of megaprojects. Finally，proposes three value alliance strategies，including balancing the power between the government and the social capital，attaching importance to the whole life cycle of the projects and incorporating the public into the value creation system.

Keywords：megaproject；value co-creation；social network analysis；dynamic relationship network

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