本文聚焦于个体社会资本随着宏观社会进程和微观生命历程而变迁的趋势，基于三期“社会网络与职业经历”数据，构建了社会资本的年龄—时期—世代模型，研究发现：第一，个体社会资本随年龄增长呈倒U形变化趋势。第二，从1999年到2014年，个体社会资本总量随时期稳定上升，但从家庭转向工作场域。第三，不同世代的早期成长环境对个体社会资本构建有深远影响，1948年及以前世代处于较高水平，1949—1977年世代明显下滑，1978年及以后世代迅速回升。以上结论对理解转型社会中人际交往模式的变迁具有重要意义。

This study focuses on the dynamics of individual social capital over the macro social processes and micro life course. Based on three cross-sectional datasets from the Job-search and Social Networks, this paper constructs an age-period-cohort model of social capital. The age effects indicate that social capital of urban residents shows an inverted U-shape trend, across the individual life course. The period effects suggest a significant increasing tendency of social capital from 1999 to 2014, but shift from the family to the workplace. The cohort effects indicate that the social context in which different cohorts grow up has a profound impact on the construction of social capital. The cohorts born in 1930-1948 stand out in the relatively high social capital, while the cohorts born in 1949-1978 experience a significant declining, but cohorts born after 1979 show a rapid growth of social capital. The above findings are important for understanding the changes in interpersonal patterns of interaction in transitional societies.

本研究为教育部人文社会科学研究青年基金（17XJC840002）和国家民委民族研究专项基金（2021-GMG-038）的阶段性成果。

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