simple centrality-based rules. In NYM and Daegu—with large initial shocks—the optimal lockdown restricts inflows to central …

effect is to reduce GDP and infections by forcing people to work from home. A premature lifting of the lock-down raises GDP … less productive, driven by the fear of infection. A longer lock-down eventually mitigates the GDP loss as well as flattens … aggressive testing and tracking more effectively reduce infections and disrupt the economy less than a blanket lock-down. Finally …