Abstract: Based on data from the 2018 and 2020 China Longitudinal Aging Social Survey(CLASS), this study systematically investigates the impact of reemployment on older adults' participation in volunteer service, as well as the underlying mechanisms, using a Logit model and the Propensity Score Matching (PSM) method. The findings indicate that reemployment significantly promotes volunteer engagement of older adults, with high-frequency reemployment associated with increased frequency of volunteer participation. Mechanism analysis reveals that reemployment not only shapes positive psychological cues but also enhances the perception of social support, both of which promote elderly participation in volunteer service. Heterogeneity analysis shows that the positive impact of reemployment is more pronounced among older adults who reenter the workforce voluntarily, compared to those who do so passively. Further analysis indicates that reemployment among older adults has a stronger positive effect on participation in the informal type volunteer service than on participation in the formal type or dual-type volunteer service. To systematically activate the synergistic effects of reemployment and volunteer participation among older adults, it is recommended to remove participation barriers, reshape the societal recognition of “productive and joyful ageing”, and provide targeted incentive measures.

Keywords: Older Adults, Reemployment, Volunteer Service, Role Identity, Social Integration

摘要： 基于2018年和2020年中国老年社会追踪调查(CLASS)数据，运用Logit模型和倾向得分匹配法，系统考察了老年人再就业对其志愿服务参与的影响及作用机制。研究发现，老年人再就业能显著促进志愿服务参与，高频率的再就业工作状态将提升志愿服务参与频率。机制分析表明，再就业不仅能塑造积极心理暗示，还可以增强社会支持感知，二者都促进了老年人志愿服务参与。异质性分析发现，主动再就业对志愿服务参与的促进作用强于被动再就业。进一步研究表明，老年人再就业对参与非正式维度志愿服务的促进作用强于参与正式维度和双重维度志愿服务。建议通过破除参与壁垒、重塑“有为有乐”社会认同并提供精准激励措施，系统激活老年人再就业与志愿服务参与的协同效应。

关键词: 老年人, 再就业, 志愿服务, 角色认同, 社会整合