
https://www.bruegel.org/sites/default/files/wp_attachments/China-WP-02-050422-final.pdf

https://www.economiesuisse.ch/de/artikel/die-praemien-sind-zu-35-prozent-einkommensabhaengig

https://businessday.ng/world/article/african-development-banks-55mn-anti-corruption-fund-unused-for-seven-years-ft/