Several countries in Asia and Europe, where the COVID-19 outbreak appears to have peaked, are gradually reopening their economies. Without a vaccine or effective treatment, policymakers will be balancing the benefits of resuming economic activity against the potential cost of another increase in infection rates. They face difficult choices, in part, because the costs of erring in either direction could be very large. Given this, authorities are adopting a gradual and sequenced approach to reopening, along with the adoption of further prevention and containment measures.