https://www.resolutionfoundation.org/app/uploads/2019/11/Feel-poor-work-more.pdf
https://www.rec.uk.com/news-and-policy/press-releases/hiring-mistakes-are-costing-uk-businesses-billions-each-year-rec
http://www.britishchambers.org.uk/Workforce%20Survey%202017%20-%20Skills%20shortages.pdf
http://futurion.se/wp-content/uploads/2018/03/Futurion_Rapport_2018-1_webb.pdf