Personality traits (big five, narcissism), sex differences, and singlehood

There is a noticeable global surge in singlehood. Eurostat (accessed on October 21, 2025) reports a 16.6% increase in single-person households without children in the EU from 2015 to 2024, which makes it the largest and fasted growing living arrangement (37.1% of population). There are more single individuals now then there have ever been in recent history. This cultural shift in relationship trends is fundamentally different of what has come before, and holds great significance not only for the economy and politics but also for society at large. The goal of the larger singlehood project is to fill some of these gaps, this present study is the first analysis of the data. The focus of the present study is two-fold, 1.) to replicate and support previous observations (Apostolou & Tsangari, 2022; Walsh et al., 2023; Bach et al., 2025) and 2.) to uncover differences between the sexes with in the Swiss context.