Direct PDF link:
https://www.nber.org/system/files/working_papers/w33697/w336...
Possibly relevant that the 6 week trial period occurred in the 6 weeks leading up to the American election in 2020.
https://www.nber.org/system/files/working_papers/w33697/w336...
Possibly relevant that the 6 week trial period occurred in the 6 weeks leading up to the American election in 2020.