https://www.oecd-ilibrary.org/docserver/cb6d9eca-en.pdf?expires=1654579866&id=id&accname=guest&checksum=058AA472061C4F1B77F0DDF5D1BCBA31
https://www.bancaditalia.it/pubblicazioni/qef/2018-0422/QEF_422_18.pdf
https://www.dailymaverick.co.za/article/2023-09-11-meet-the-naickers-the-family-cashing-in-on-government-dysfunction/