
http://www.ips-journal.eu/topics/social-democracy/article/show/no-blank-cheque-for-macron-2123/

https://library.oapen.org/bitstream/id/c7b615eb-794a-46fa-b63d-63a9bae6b26e/9781951399030.pdf

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/662744/State_of_the_Nation_2017_-_Social_Mobility_in_Great_Britain.pdf