A universal testing and isolation policy is the most viable way to vanquish a pandemic. Its implementation requires: (i) an epidemiological rather than clinical approach to testing, sacrificing accuracy for scalability, convenience and speed; and (ii) state intervention to ramp up production,...

Economy-wide shocks affect demand, supply, and intermediary sectors simultaneously. We dissect the impact of the Covid-19 pandemic on international trade by combining information from customs records, smartphone-based human mobility, and container ship port calls. We find that local disruptions...