Insider Trading:

Insider Trading:: Halfway through the growing season a grain trader receives a private report on the state of the corp. Should he use the information to speculate in grain futures? or should he assume future prices already impound so much information that his own information is valueless and on the basis refrain from speculating?

H/T noahpinionblog.blogspot.com

Insider Trading: Information Trade and Common Knowledge by ValueWalk.com