Why did the Fed ease the Fed Funds rate by a whopping 125bps in eight days this past January? It is true that most macro indicators are heading south and suggesting a deep and severe recession that has already started. But the flow of bad macro news in mid-January did not justify, by itself, such a radical inter-meeting emergency Fed action followed by another cut at the formal FOMC meeting.

To understand the Fed actions one has to realize that there is now a rising probability of a “catastrophic” financial and economic outcome, i.e. a vicious circle where a deep recession makes the financial losses more severe and where, in turn, large and growing financial losses and a financial meltdown make the recession even more severe. The Fed is seriously worried about this vicious circle and about the risks of a systemic financial meltdown.

That is the reason the Fed had thrown all caution to the wind – after a year in which it was behind the curve and underplaying the economic and financial risks – and has taken a very aggressive approach to risk management; this is a much more aggressive approach than the Greenspan one in spite of the initial views that the Bernanke Fed would be more cautious than Greenspan in reacting to economic and financial vulnerabilities.

To understand the risks that the financial system is facing today I present the “nightmare” or “catastrophic” scenario that the Fed and financial officials around the world are now worried about. Such a scenario – however extreme – has a rising and significant probability of occurring. Thus, it does not describe a very low probability event but rather an outcome that is quite possible.

Start first with the recession that is now enveloping the US economy. Let us assume – as likely - that this recession – that already started in December 2007 - will be worse than the mild ones – that lasted 8 months – that occurred in 1990-91 and 2001. The recession of 2008 will be more severe for several reasons: first, we have the biggest housing bust in US history with home prices likely to eventually fall 20 to 30%; second, because of a credit bubble that went beyond mortgages and because of reckless financial innovation and securitization the ongoing credit bust will lead to a severe credit crunch; third, US households – whose consumption is over 70% of GDP - have spent well beyond their means for years now piling up a massive amount of debt, both mortgage and otherwise; now that home prices are falling and a severe credit crunch is emerging the retrenchment of private consumption will be serious and protracted. So let us suppose that the recession of 2008 will last at least four quarters and, possibly, up to six quarters. What will be the consequences of it?

Here are the twelve steps or stages of a scenario of systemic financial meltdown associated with this severe economic recession…