“…Third, the questionnaire contains rich information on household demographic information and socio‐economic characteristics (i.e., gender, age, marital status, number of children, number of siblings, political status, household income, education and language skills, and so on). These details allow us to control for such observables, which are critical in explaining overall happiness (Appleton & Song, 2008; Cuñado & de Gracia, 2012; Hu & Ye, 2020). Local hukou and communism are two socio‐cultural variables with Chinese characteristics.…”