社交网络服务平台使用对大学生社会资本影响的实证分析
An Empirical Analysis for the Effects of SNS Usage on College Students′ Social Capital

社交网络服务（SNS）平台已成为当代大学生建立和拓展人际关系的重要途径。依据对西安交通大学本科生的调查数据，采用OLS回归方法分析了大学生SNS使用对不同类型（桥接型、粘结型、维持型）社会资本的影响。分析结果表明：大学生通过SNS与他人的互动强度和对SNS的认可度对三种类型的社会资本都呈现出非常显著的正向效应；在SNS上所拥有的好友数量对桥接型和粘结型社会资本有显著的正向影响，但对维持型社会资本却没有影响；SNS使用时间仅对桥接型社会资本呈倒“U”型关系，但对其他两类社会资本的影响并不显著。研究结果支持了SNS对大学生社会资本的积极作用，因此建议大学生利用该平台和他人积极互动，帮助自身维持和加强已有的社会网络，拓展新的社会关系。
The social network service (SNS) platform has become an important way for college students to build and develop their interpersonal relationships. Based on the data surveyed from undergraduates at Xi′an Jiaotong University, the OLS regression method was applied to analyze the effects of college students′ usage of SNS on three different types (bridging, bonding, maintained) of social capital. The empirical results show that the interaction frequency with others through SNS and the recognition of SNS has significant positive effects on three types of social capital；the number of friends in SNS has positive effects on bridging and bonding social capital, but has no significant effect on maintained social capital. Regarding the time spending on SNS, it only has significant inverted U-shaped relationship on bridging social capital, but has no significant impact on the other two types of social capital. Overall, the results support the positive role of the SNS on college students′ social capital. So, it is recommended that students use the platform to interact with others in order to help them maintain and strengthen existing social networks, and also expand new social relations