*1.5. Built or Manufactured Capital*

The correlations between SWB and built or manufactured capital (e.g., roads, postal offices) in Japan were examined, and there were no statistically significant correlations, while the authors cautioned that several urban respondents completing the online survey may already have sufficient levels of built capital [27]. Tsurumi et al. included convenience indicators (e.g., number of neighboring retail stores) as control variables and found no statistically significant correlations with SWB [25].
