We investigate the impacts of new COVID-19 infections on stock returns within China's unique zero-COVID policy framework. We document a remarkable negative pattern: a COVID-19 outbreak within a city adversely affects the performance of local firms in a nonlinear fashion. This effect intensifies...

We investigate the impacts of new COVID-19 infections on stock returns within China’s unique zero-COVID policy framework. We document a remarkable negative pattern: a COVID-19 outbreak within a city adversely affects the performance of local firms in a nonlinear fashion. This effect...

Globally, over 800 million people are food insecure. Current methods for identifying food insecurity crises are not based on statistical models and fail to systematically incorporate readily available data on prices, weather, and demographics. As a result, policymakers cannot rapidly identify...