Durante Ruben, Guiso Luigi, Gulino Giorgio
ICREA, UPF, Barcelona School of Economics, IPEG, and CEPR, Spain.
EIEF and CEPR, Italy.
J Public Econ. 2021 Feb;194:104342. doi: 10.1016/j.jpubeco.2020.104342. Epub 2021 Jan 4.
Social distancing can slow the spread of COVID-19 if citizens comply with it and internalize the cost of their mobility on others. We study how civic values mediate this process using data on mobility across Italian provinces between January and May 2020. We find that after the virus outbreak mobility declined, but significantly more in areas with higher civic capital, both before and after a mandatory national lockdown. The effect is not driven by differences in the risk of contagion, health-care capacity, geographic socioeconomic and demographic factors, or by a general North-South divide. Simulating a SIR model calibrated on Italy, we estimate that if all provinces had the same civic capital as those in top-quartile, COVID-related deaths would have been about 60% lower. We find consistent results for Germany where the incidence of the pandemic and restrictions to mobility were milder.
如果公民遵守社交距离规定并将其出行给他人带来的成本内化,那么社交距离就能减缓新冠病毒的传播。我们利用2020年1月至5月意大利各省的出行数据,研究公民价值观如何在这一过程中发挥中介作用。我们发现,病毒爆发后出行量下降,但在公民资本较高的地区下降幅度更大,这一情况在全国强制封锁之前和之后均如此。这种影响并非由传染风险、医疗保健能力、地理社会经济和人口因素的差异,或一般的南北差异所驱动。通过模拟一个根据意大利情况校准的SIR模型,我们估计,如果所有省份的公民资本都与处于前四分之一水平的省份相同,那么与新冠相关的死亡人数将减少约60%。我们在德国也发现了一致的结果,德国的疫情发病率和出行限制较为温和。