Abstract: Social capital provides a channel for information and improves managers’ ability to discover new opportunities. Existing literature has shown that the internal social capital within the top management team (TMT) has a positive impact on team performance, but the mechanism of the internal social capital of the TMT affecting decision performance within the TMT has not been clear. Based on the upper echelons theory and the social capital theory, a theoretical model of the relationship between social capital, transactive memory system, and decision performance in TMT was proposed from the perspective of cognitive process. The structural equation model based on 392 sample data shows that TMT relational social capital dimensions of trust, the cognitive social capital dimension of shared vision on decision quality and satisfaction have positive effects, but the direct effect of structural social capital dimension of network ties is not significant. The influence of TMT internal social capital dimensions on the transactive memory system is cognitive dimension of share vision, relational dimension of trust and structural dimension of network ties in order. The TMT transactive memory system has a significant positive influence on decision quality and satisfaction. The transactive memory system mediates the relationship between the decision quality and satisfaction of internal social capital of TMT.

Key words: top management team (TMT), social capital, cognitive process, transactive memory system (TMS), decision-making performance

摘要： 社会资本为信息提供了渠道，提高了管理者发现新机遇的能力。现有文献表明，高管团队内部社会资本对团队绩效具有积极的影响, 然而，高管团队内部社会资本影响决策绩效的内在作用机理尚未明晰。基于高阶理论和社会资本理论，从认知过程视角提出了高管团队内部社会资本、交互记忆系统和决策绩效关系间的理论模型。基于392份样本数据的结构方程模型表明：高管团队内部社会资本关系维度的信任、认知维度的共同愿景对决策质量和满意度均具有积极影响，但结构维度的网络关系直接影响效应并不显著；高管团队内部社会资本各维度对交互记忆系统的影响强度依次为认知维的共同愿景、关系维的信任和结构维的网络关系；高管团队交互记忆系统对决策质量和满意度具有显著正向影响；交互记忆系统在高管团队内部社会资本与决策质量和满意度之间起中介作用。

关键词: 高管团队, 社会资本, 认知过程, 交互记忆系统, 决策绩效