[Sephiroth]

Originally Posted by OLD BOY

The problem with these forecasts, as I have said before, is that they emphasise the debit side and are unable to calculate precisely the credit side (as it is the future, and dependent on business decisions).

This is why they are so pessimistic. You can calculate what you have lost, but not what can be gained through new opportunities. Until you know what the private sector plans, that is.

Source?

Hope that helps.