世界银行：实时指标追踪新冠肺炎危机期间发展中国家家庭福利变化的情况如何？（英文版）

This paper investigates the extent to which real-time indicators derived from internet search, cell phones, and satellites predict changes in household socioeconomic indicators across approximately 300 administrative level-1 regions in 20 countries during the COVID-19 crisis. Measures of changes in socioeconomic status in each region are taken from high-frequency phone surveys. When using the first wave of data, fielded between April and August 2020, models selected using the least absolute s