The purpose of this study was to analyze the potential positive and negative effects of team cohesion on team performance in a sport organization. Unbalanced panel data of 10 teams for the past 22 years (1997 season through the 2017–2018 season) from the Korean Basketball League were collected. A social network analysis approach was employed to measure network density as a proxy variable to measure team cohesion. The panel analysis results indicated team cohesion was shown to have a positive influence on team performance in the linear model as well as a negative influence on team performance in the quadratic model. The interaction effect of manager-player density did not influence team performance. In this study, the pattern of the relationship between team cohesion and performance was an inverted U-shape. Summarily, the density of a player’s school network could negatively influence team performance when it exceeds an optimal density level.

本研究的目的是分析团队凝聚力对体育组织中团队绩效的潜在正面和负面影响。收集了韩国篮球联赛过去 22 年（1997 赛季至 2017-2018 赛季）10 支球队的不平衡面板数据。采用社交网络分析方法来衡量网络密度，作为衡量团队凝聚力的代理变量。面板分析结果表明，团队凝聚力在线性模型中对团队绩效有积极影响，在二次模型中对团队绩效有负面影响。经理-球员密度的交互作用不影响团队绩效。在这项研究中，团队凝聚力与绩效之间的关系模式呈倒U型。概括地说，