Sources tutoriel « Phénomène de concentration de richesse: cause d'inégalités? »
http://www.irec.net/upload/File/notederecherche1_novembre2012.pdf
http://currydemocrats.org/american-pie/
http://www.chinainternetwatch.com/3206/hurun-wealth-report-2013/
https://www.quora.com/Is-income-inequality-a-red-herring
https://www.quora.com/Is-income-inequality-really-increasing