http://www.bankofengland.co.uk/publications/Documents/speeches/2017/speech992.pdf
https://www.esri.ie/system/files/publications/RB202105_0.pdf
https://www.epsu.org/sites/default/files/article/files/Going%20Public_EPSU-PSIRU%20Report%202019%20-%20EN.pdf
https://companiesmarketcap.com/