Thank you for the video. The explanations about Africa future is very good. I am sure that Africa can develop and increase its economy and society, and i am agree with Shanta Devarajan about the importance of the circle (polity stability, grew economy, and polity support). We are several small businessmen and small businesswomen. We are civil engineers, specialist in infrastructures (water suply, sewage, highway, railway, ports, etc), and we would like to help and colaborate in Africa develoment and improvement.