Anatomy of a Swedish population-scale network

With the increasing interest in large-scale social network analysis, recent research has expanded into nation-wide networks generated from administrative data. We construct a multilayer population-scale social network for Sweden using public register data from 2000 to 2017, covering approximately 8.3 million individuals aged 15 and older. We analyze the structure and connectivity patterns in the network across six layers: close family, extended family, household, school, neighbors, and work. We compare our findings to a similar study of the Netherlands, revealing similar degree distributions and small-world characteristics, but also discrepancies in the embeddedness and closure distributions, mainly driven by differences in size and population density.