中文摘要：

近年来,互联网和电子健康网站的发展,使通过互联网进行社会支持成为可能。在线方式消除了地理和时间的限制,扩大了弱势群体获得社会支持的来源和途径,是对传统线下社会支持方式的一种良好补充。然而,这一类网站的繁荣与成功,依赖于是否有足够的用户愿意提供社会支持。因此,研究用户的在线社会支持提供意愿就成为一个非常有意义的研究问题。现有关于社会支持的研究主要关注的是养老和社区互助的场景,在线环境下许多传统线索（如视觉线索、听觉线索）消失,同时很多适用于家庭和社区场景的理论不再适用于线上环境。本文从解释水平理论的视角出发,研究心理距离对在线社会支持提供意愿的影响,以及共情在其中发挥的调节作用。我们通过实地问卷调查的方法收集了数据来验证所提假设。研究结果表明,心理距离对在线社会支持的提供意愿有负向影响,并且共情会负向调节这种影响。

英文摘要：

With the development of internet and the proliferation of e-health websites, delivering social support through the internet becomes possible. The online social support brings several advantages including diminishing the geographic or time constraint, and providing a new channel to help the vulnerable groups. However, the success of social support websites heavily depends on the user＇s willingness to provide social support, usually without any economic feedback. Therefore, investigating why the users are willing to provide social support is a significant research question. Extant studies on social support mainly focus the mutual help within an offline community. Many of the traditional clues such as visual or auditory cues are no longer available in the online context, which means the findings from the offline community are no longer applicable. To fill the research gap, this research investigate the influence of psychological distance on the user＇s willingness to provide social support and the moderating effect of empathy from the construal level theory perspective. We collect data from field survey to test the proposed hypotheses. The results show that psychological distance have a negative effect on the willingness to provide social support, and empathy negatively moderate the impact of psychological distance on willingness to provide social support.