Much more wealth flows out of Africa than it receives in aid via tax evasion by MNCs, interest on debt and resource exploitation - http://www.globaljustice.org.uk/news/2017/may/24/africa-subs.... The research made headlines last year and was reported in several international news sites.

Link to the actual report - http://www.globaljustice.org.uk/sites/default/files/files/re...