Quote from sportsguy:
Surf,
Modern portfolio theory deals with how to diversify away risk, except systemic risk, in exchange for return. Excellent analysis can be found on seekingalpha.com by Geoff/Jeff Considine. BUT, in grad school or otherwise, there is very little study for handling systemic risk, which is what is occurring at the moment.
Systemic risk occurs very seldom, and mostly after long periods of success and beyond generations, ie, once in a lifetime type events. Systemic risk situations are unique, but the lender of last resort handling of them determines the outcome, unlike portfolio theory. Systemic risk can't be modelled well because of the psychological reactions which may occur.
The most important point is that the future is very uncertain, and more uncertain in these times of systemic risk. So there are few historical comparisions to draw upon because the financial markets are so different between events. . . The deep psychological damage is done when the market is at recent relatively cheap valuations, and investors wade back in, and then the market falls significantly further. . . .
sportsguy