What Do Happiness Data Mean? Theory and Survey Evidence

What utility notion do self-reported well-being (SWB) questions measure? We clarify the assumptions that underlie existing applications regarding the (i) life domains, (ii) time horizons, and (iii) other-regarding preferences captured by SWB data. We ask survey respondents what they had in mind regarding (i)–(iii) when answering commonly used—life satisfaction, happiness, ladder—and new SWB questions. Respondents put most weight on the present and on themselves—but not enough to interpret SWB data as measuring notions of flow utility and self-centered utility. We find differences across SWB questions and across sociodemographic groups. We outline actionable suggestions for SWB researchers.