Already have a thread on this (link attached below)...Just read all 60 posts in it and attempts to your answers (and more) are all embedded in it.  It may take a lil deciphering from your side to get it if you have no real economic analysis back-ground.  As per Dr. Doom: Noureil Rubini, a Prof at my alma mater, it will last until 2012 at the least...could even go on for 8 yrs.  Who da hell really knows!!

http://www.sajha.com/sajha/html/openThread.cfm?threadid=62537