Research Note: Estimating Kinship Size of Older Adults in Europe With Models and Surveys.

Measures of kinship size are increasingly common in sociodemographic studies. The size and structure of older adults' kinship networks can be ascertained via direct observation in a social survey or modeled using demographic techniques. Each approach has advantages and disadvantages, but whether the two provide comparable estimates of kinship size is an open question. In this research note, we answer this question using social survey data and demographic models to estimate the size of older adults' kinship networks in 22 European countries. We find an impressively high association between the two approaches, with important variations by the kin type considered. We discuss the reasons for the divergence in the estimates and provide guidance for researchers interested in using either approach to quantify kinship size.