Indian School of Business, Hyderabad, India.
Abdul Latif Jameel Poverty Action Lab (J-PAL), Cambridge, MA, United States of America.
PLoS One. 2022 Aug 8;17(8):e0271488. doi: 10.1371/journal.pone.0271488. eCollection 2022.
We use data collected from panel phone surveys to document the changes in food security of households in rural Liberia and Malawi during the market disruptions associated with the COVID-19 lockdowns in 2020. We use two distinct empirical approaches in our analysis: (a) an event study around the date of the lockdowns (March to July 2020), and (b) a difference-in-differences analysis comparing the lockdown period in 2020 to the same months in 2021, in order to attempt to control for seasonality. In both countries, market activity was severely disrupted and we observe declines in expenditures. However, we find no evidence of declines in food security.
我们利用面板电话调查收集的数据,记录了 2020 年 COVID-19 封锁期间市场混乱对利比里亚和马拉维农村家庭粮食安全状况的影响。我们在分析中采用了两种不同的实证方法:(a)在封锁日期(2020 年 3 月至 7 月)前后进行事件研究,(b)对 2020 年封锁期与 2021 年同期进行差异分析,以尝试控制季节性。在这两个国家,市场活动都受到了严重干扰,我们观察到支出下降。然而,我们没有发现粮食安全状况恶化的证据。