It will also lead to numerous complications which will result in no greater degree of certainty in the process than that which already exists. (mackenziedrs.com)
Nobody know with even a good degree of certainty what the effects will be not the major cause of the increases that we see. (dotearth.blogs.nytimes.com)
You are willing to settle for a relatively low rate of return in exchange for a greater degree of certainty about that return. (shareowner.com)