https://www.ifs.org.uk/uploads/publications/bns/BN211.pdf
http://blog.lboro.ac.uk/crcc/general-election/media-coverage-of-the-2017-general-election-campaign-report-4/?utm_source=twitter&utm_medium=social&utm_campaign=ge2017&utm_content=coverage#coverage
https://www.strategie.gouv.fr/sites/strategie.gouv.fr/files/atoms/files/fs-2023-na125-force-du-destin-septembre_1.pdf
https://www.socialeurope.eu/2017/06/the-case-for-an-investment-state/