http://www.cbi.org.uk/cbi-prod/assets/File/June%202017_CBI%20economic%20forecast%20table(1).pdf
https://library.fes.de/pdf-files/wiso/14700.pdf
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://www.bloomberg.com/news/articles/2019-06-14/the-eu-had-to-plan-for-worst-when-greece-almost-ran-out-of-money?cmpid=BBBXT061719_BIZ&utm_medium=email&utm_source=newsletter&utm_term=190617&utm_campaign=brexit