We embed a lockdown choice in a simplified epidemiological model and derive formulas for the optimal lockdown intensity and duration. The optimal policy reflects the rate of time preference, epidemiological factors, the hazard rate of vaccine discovery, learning effects in the health care...

This paper provides estimates of COVID-19 effective reproduction numbers and explains their evolution for selected European countries since the start of the pandemic taking account of changes in voluntary and government mandated social distancing, incentives to comply, vaccination and the...

This study documents how the demographics of new infections and mortality changed over time across US counties. We find that counties with a larger population share aged above 60 were hit harder initially in terms of both cases and mortality in March and April while counties with a larger...

This paper investigates the link between dishonesty and the spread of COVID- 19 infections. In an online experiment and panel survey, 2,723 Germans completed an incentivized coin-tossing task in March 2020 and reported their infection status in four subsequent survey waves up until December...

The purpose of this paper is to construct a relative performance index for the States in India in terms of their performance in combatting Covid-19 pandemic. The data is analyzed up to August, 2020, though the methodology used can be readily extended to update the index. The methodology can be...

This paper empirically examines how the opening of K-12 schools and colleges is associated with the spread of COVID-19 using county-level panel data in the United States. Using data on foot traffic and K-12 school opening plans, we analyze how an increase in visits to schools and opening schools...