The Covid-19 pandemic is a public health crisis with enormous economic implications: As much of the U.S. reduces daily activity in spring 2020, unemployment is already surging and experts are forecasting major drops in GDP during the second quarter of the year. U.S. Congress has also just passed a $2 trillion aid package for individuals and businesses. To assess the current state of the economy, MIT News contacted Jonathan Parker, the Robert C. Merton Professor of Finance at the MIT Sloan School of Management. Among his other areas of research,…