In 2005-08, over a dozen put warrants traded in China went so deep out of the money that they were almost certain to expire worthless. Nonetheless, each warrant was traded more than three time each day at substantially inflated prices. This bubble is unique in that the underlying stock prices...

In 2005-08, over a dozen put warrants traded in China went so deep out of the money that they were certain to expire worthless. Nonetheless, each warrant was traded nearly three times each day at substantially inflated prices. This bubble is unique, because the underlying stock prices make the...

We study the effect of the zero-COVID policy on labor market outcomes by matching China Family Panel Studies (CFPS) and the daily COVID-19 case data. By exploiting variation in the duration of the zero-COVID policy in China, which are triggered by the outbreak of new COVID-19 confirmed cases, we...

In 2005-08, over a dozen put warrants traded in China went so deep out of the money that they were certain to expire worthless. Nonetheless, each warrant was traded nearly three times each day at substantially inflated prices. This bubble is unique, because the underlying stock prices make the...