There are various explanatory models for factors influencing happiness. Broadly speaking, there are two theoretical models: adaptation theory which emphasizes individual personality traits and reactivity theory which emphasizes objective external circumstances (Sirgy, 2001). Adaptation theory is primarily a psychologist's approach, with individual personality traits such as extraversion, agreeableness, conscientiousness, emotional stability, and openness rather than objective conditions as key influencing variables (Maggino, 2015;Yeh et al., 2015). This theory posits that satisfaction with life experiences or public services affects happiness through a filtering process by pre-determined personality traits, and improvement of objective conditions or increasing positive experiences does not increase happiness. Rather, personality traits influence the emotions and evaluations of various objective situations. In contrast, reactivity theory is the main approach of various social scientists including economics and sociology and posits that objective external conditions at individual and social levels such as income, age, gender, marriage, occupation, family, region, and government. Conditions and so on are linked to happiness. In the process, individual experiences and evaluations are determined by passive reactions to objective conditions, so objective conditions become an important influencing variable of happiness (Diener, 1984;Ko, 2013).Adaptation and response theories are each called by various names. Adaptation theory, which focuses on internal traits of individuals, is also referred to as personal trait or disposition theory, internal factor theory, set point theory, top-down spillover theory, etc. Reactivity theory, which focuses on objective external conditions, is also called in various ways such as situation theory, external factor theory, needs satisfaction theory, and bottom-up spillover theory. Among these various names, some additional explanation is needed for the distinction between the top-down spillover approach and the bottom-up spillover approach. Both approaches focus on the spillover process of happiness. A spillover is a phenomenon in which satisfaction in one domain of life affects satisfaction in another domain and can be divided into