School of Public Health, Department of Infectious Disease Epidemiology, Imperial College London, St Mary's Campus, London.
Health Econ. 2022 Nov;31(11):2481-2498. doi: 10.1002/hec.4592. Epub 2022 Aug 23.
COVID-19 caused an unprecedented health and economic crisis. Nation-wide lockdowns triggered major economic disruptions across the world. We provide evidence of the impact of these extreme economic shocks on health outcomes across wealth levels. We further identify if cash transfers can mitigate the negative health effects for the most economically vulnerable. The study focuses on South Africa, an Upper Middle-Income Country with high levels of inequality, a large informal labor market and with low levels of social welfare. Using difference-in-difference estimation (DD) on a longitudinal sample of 6437 South Africans, we find that the lockdown income shock significantly reduces health by 0.2 standard deviations (SD). We find no difference of the effect across wealth quartiles. Exposure to a cash transfer program mitigates the negative health effects for recipients in the lowest wealth quartile to 0.25 SD compared to 0.4 SD for non-recipients. Full mitigation occurs for individuals exposed to an on average higher scale-up of the cash transfer program. Our analysis shows that a lockdown induced income shock caused adverse health outcomes; however, a pro-poor cash transfer program protected the most economically vulnerable from these negative health effects.
COVID-19 引发了一场前所未有的健康和经济危机。全球范围内的封锁导致了重大的经济混乱。我们提供了证据,证明这些极端经济冲击对不同财富水平的健康结果的影响。我们进一步确定现金转移是否可以减轻最经济脆弱人群的负面健康影响。该研究以南非为重点,南非是一个中高收入国家,不平等程度高,非正规劳动力市场庞大,社会福利水平低。我们使用纵向样本中的差异分位数估计(DD)对 6437 名南非人进行了分析,发现封锁期间的收入冲击使健康状况显著降低了 0.2 个标准差(SD)。我们没有发现财富四分位数之间存在差异。对于处于最低财富四分位数的接受者,现金转移计划的实施减轻了对健康的负面影响,而对于非接受者,健康的负面影响为 0.4 SD。对于接触到现金转移计划的平均规模扩大的个人,完全缓解了这些负面影响。我们的分析表明,封锁引起的收入冲击导致了不良的健康结果;然而,有利于穷人的现金转移计划保护了最经济脆弱的人群免受这些负面健康影响。