Shoji Masahiro, Cato Susumu, Iida Takashi, Ishida Kenji, Ito Asei, McElwain Kenneth Mori
Institute of Social Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033 Japan.
Econ Disaster Clim Chang. 2022;6(2):235-258. doi: 10.1007/s41885-021-00103-5. Epub 2021 Nov 29.
During the initial phase of pandemics, swift behavioral responses by individuals, such as social distancing, can temper the speed and magnitude of further infections. However, individual choices in this period are often made in the absence of reliable knowledge and coordinated policy interventions, producing variation in protective behaviors that cannot be easily deduced from that in later periods. Using unique monthly panel survey data, we examine variations in the association between changes in infections and risky behavior, particularly the frequencies of face-to-face conversations and dining out, between January to March 2020. We find that the increase in confirmed cases is negatively associated with the likelihood of these behaviors. However, high school graduates are less responsive than university graduates. We provide evidence that this can be attributed to their lower perception of infection risk, while we cannot fully rule out the roles of income opportunity costs. These results point to the benefits of interventions incorporating nudges to raise individuals' risk perceptions during the initial phase of pandemics. We also discuss the potential efficacy of such interventions in later periods of pandemics.
The online version contains supplementary material available at 10.1007/s41885-021-00103-5.
在疫情初期,个人迅速做出的行为反应,如保持社交距离,能够减缓进一步感染的速度和规模。然而,这一时期个人的选择往往是在缺乏可靠信息和协调一致的政策干预的情况下做出的,导致保护行为出现差异,而这种差异在后期是不容易推断出来的。利用独特的月度面板调查数据,我们研究了2020年1月至3月期间感染变化与危险行为之间关联的差异,特别是面对面交谈和外出就餐的频率。我们发现确诊病例的增加与这些行为的可能性呈负相关。然而,高中毕业生的反应比大学毕业生要小。我们提供的证据表明,这可能归因于他们对感染风险的认知较低,同时我们也不能完全排除收入机会成本的作用。这些结果表明,在疫情初期采取一些助推措施来提高个人的风险认知是有益的。我们还讨论了此类干预措施在疫情后期的潜在效果。
在线版本包含可在10.1007/s41885-021-00103-5获取的补充材料。