http://www.bankofengland.co.uk/publications/Documents/speeches/2017/speech971.pdf
https://blogs.imf.org/2018/06/06/chart-of-the-week-the-rise-of-corporate-giants/?utm_medium=email&utm_source=govdelivery
https://www.fraserinstitute.org/sites/default/files/economic-freedom-of-the-world-2021.pdf
https://www.brookings.edu/wp-content/uploads/2018/07/Moulton-report-v2.pdf