タイトル(掲載誌)Discussion Papers In Economics And Business
一般注記* Revised: Economic and Behavioral Factors in an Individual's Decision to Get an Influenza Vaccination in Japan [10-23, 2010]
In this paper, we investigate what people in Japan consider when deciding to take the influenzavaccination. We develop an economic model to explain the mechanism by which people decide totake the influenza vaccination. Using our model and the data obtained from a large-scale surveywe conducted in Japan, we demonstrated that people make rational decisions about vaccinationsafter considering its cost and benefits. People consider the probability of infection, severity of thedisease, and the vaccination's effectiveness and side effects. The time discount rate is anotherconsideration because the timing of costs and benefits of the vaccination differ. Risk aversion(fearing the contraction of the flu and vaccination's side effects) also affects the decision. Peoplealso deviate from rationality—altruism and status quo bias play important roles in thedecision-making. Overconfidence indirectly affects the decision via perception variables such asthe subjective probability of infection and assessment of influenza's severity. The decision alsodepends on attributes such as gender, age, and marital status. If the general perception of flu andvaccination is inaccurate, supplying accurate information regarding those may increase ordecrease the vaccination rate, depending on whether this perception is, respectively, higher orlower than the objective rates. Thus, we examine whether the general perception is biased. Oursurvey suggests that disseminating information on the vaccination's effectiveness may increase therate of vaccination, whereas that on the probability of infection may have the opposite effect.
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)