https://knowledge.wharton.upenn.edu/article/why-are-the-markets-collapsing-how-bad-will-covid-19-really-be/?utm_source=kw_newsletter&utm_medium=email&utm_campaign=2020-03-17
https://fr.weforum.org/agenda/2019/12/manifeste-de-davos-2020-l-objectif-universel-d-une-entreprise-dans-la-quatrieme-revolution-industrielle
https://knowledge.wharton.upenn.edu/article/ten-guidelines-create-opportunities-coronavirus-crisis/?utm_source=kw_newsletter&utm_medium=email&utm_campaign=2020-04-14