The problem with cash grants is something that does not show up when there is a Columbia professor watching things. And that is that the money gets stolen. Many poor countries suffer from corrupt callous and cruel leadership. And this means that the people in power tend to steal from the poor. Thus, if some organization tries to give cash to the poor there is a high likelihood that the money will be stolen and sent t…
I've heard (from people like Andrew Mwenda) that say that Western aid to African governments ends up not helping the citizenry and just props up bad governments.
Aid that completely bypasses corrupt governments and goes directly to citizens seems to be less likely to be stolen by middlemen. If you look at Give Directly (http://www.givedirectly.org/faqs.php) they send cash directly to a person's cell phone, and their audits have shown very little money being lost to corruption.