
https://chemsec.org/app/uploads/2022/04/Not_quite_100_percent.pdf

https://cepr.org/sites/default/files/news/CovidEconomics19.pdf?utm_medium=email&utm_source=govdelivery#Paper2

https://www.autoritedelaconcurrence.fr/sites/default/files/2019-11/2019-11-04_algorithms_and_competition.pdf