Attempting to dangle a carrot in front of the horse this study shows the GDP losses from not having peace. But what is also shown and might be overlooked is how economically rational the step from non-violent resistance to violent resistance may be. In-fact of all of the scenarios the Rand Corporation modeled the step from non-violent to violent offers the least obstruction:
https://gist.github.com/cyphunk/738b7e1a217be6d03631