If you want to do ROI calculations on problems spaces - there's a group that publishes strategies for these:
Copenhagen Consensus [PDF]:
http://www.copenhagenconsensus.com/sites/default/files/Outco...
If you want to do ROI calculations on problems spaces - there's a group that publishes strategies for these:
Copenhagen Consensus [PDF]:
http://www.copenhagenconsensus.com/sites/default/files/Outco...