[Disclosure: He is on the CowdCast board. 
]
Andrew McAfee asks a question at the bottom of his post. Here is my answer. The reason for not adopting collective forecasting (prediction markets being the most complex method of information aggregation that predicts) would be that the benefit (objectivity in forecasting) is too small for those executives who don’t really need that surplus of objectivity.
If you have other questions, professor McAfee, just ask. I’ll have the answers for you.
Previously: CrowdCast = Collective Forecasting = Collective Intelligence That Predicts