
https://www.socialeurope.eu/2017/07/real-measure-inequality/

https://www.nuffieldtrust.org.uk/news-item/how-has-the-role-of-the-private-sector-changed-in-uk-health-care

https://wiiw.ac.at/digital-tasks-and-ict-capital-methodologies-and-data-dlp-6429.pdf