Western financial institutions may have bilked £1tn from African nations

Even using conservative estimates, the continent lost about $1.8tn (£1.18tn) – meaning Africans living at the end of 2008 had each been deprived of an average of $989 (£649) since 1970, according to the US-based research body Global Financial Integrity (GFI).

The report says globally in recent years much attention has been focused on global corruption – the proceeds of bribery and theft by government officials – and this only makes up about 3% of the cross-border flow of illicit money around the world. The proceeds of commercial tax evasion, mainly through trade mis-pricing, contribute 60% to 65% of the global total, while drug trafficking, racketeering and counterfeiting make up 30% to 35%. The report alleges Africa's percentages are roughly the same.

"This massive flow of illicit money out of Africa is facilitated by a global shadow financial system comprising tax havens, secrecy jurisdictions, disguised corporations, anonymous trust accounts, fake foundations, trade mis-pricing and money laundering techniques."

This capital loss has a devastating effect on development and attempts to alleviate poverty, the GFI report says.

Download the GFI report in PDF format