The OECD has published a relevant study on Illicit Financial Flows from Developing Countries. Measuring OECD Responses. According to the summary, this publication “identifies the main areas of weakness and potential areas for action to combat money-laundering, tax evasion, foreign bribery, and to identify, freeze and return stolen assets”.
It is possible to read the book on line for free at the OECD digital assets link.
Pedro M. Herrera