中国家庭边界的界定是研究中国家庭的理论问题，也是家庭变迁的现实问题和家庭调查的方法问题。本文关注中国人对家庭成员范围的认知可变性及认定标准。通过调查实验本文发现，人们对家庭边界的认知随语境不同而变化；直系亲属关系对家庭关系的认定比共同居住和经济联系更具优先性；代际同住和隔代抚养对主干家庭的认定有重要影响。本文为经典和当代中国本土家庭理论提供了新的实证证据，并以此探讨问卷调查在测量中国家庭边界上面临的挑战。

The definition of family boundaries in China involves a theoretical issue pertaining to the unique characteristics of Chinese families, a practical concern regarding the changing dynamics of family structures in modern society, and a methodological challenge in accurately measuring family boundaries in household surveys. This study attends to the perception elasticity of, and the criteria for, defining a family's boundaries in contemporary China. Based on survey experiments, this study finds that Chinese respondents' perceptions of family boundaries change depending on different contexts. Immediate family bonds precede co-residence and economic interdependence in identifying family relationships. Additionally, intergenerational co-residence and intergenerational childcare support are important factors that people consider in defining a stem family. This study provides empirical evidence for both classical and contemporary Chinese family theories and discusses the challenges faced by social surveys in measuring family boundaries in China.

本文受教育部重大课题攻关项目“新中国成立以来社会调查发展进程、经验与展望研究”（20JZD032）资助。

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