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In the early months of 2020, millions of workers worldwide were laid off as the Covid-19 pandemic shuttered entire industries. Yet not all industries suffered contractions: the healthcare sector, for instance, saw demand grow, as did schools, in some parts of the world, and online retail. Under normal conditions, workers constantly shift between different industries, albeit at a slow pace. However, the Covid-19 pandemic created an urgent need to make labor shifts happen much more quickly.