Can we really have witnessed the demise of three top investment banks in so short a time? Bears Stearns, Lehman Brothers and Merrill Lynch have all disappeared off the radar in quick succession.

What is happening to the world’s — and especially the American’s — financial system?

It started with the slicing, dicing and splicing of U.S. mortgages of sub-prime customers. The structured financial instruments that were sold off around the world became known as CDOs (Collateralized Debt Obligations).

They have poisoned the world’s financial system, like seeping toxic waste. Now a new danger is forming on the horizon.

CDSs (Credit Default Swaps — insurance policies for bonded commercial IOUs), which are out there in their trillions and trillions, are beginning to crumble in the face of massive defaults.

The world’s biggest insurer AIG is already in Lehman territory — its shares plummeted by 70 percent in early trading yesterday. The long-foretold CDS crisis is with us at last.

So what precisely are CDSs and how will their demise affect most of us in coming days, weeks, months and years?

George Soros estimates that the value of CDSs now equals half of U.S. household wealth, an almost unimaginable number — let’s call it $23 trillion.

CDSs are hedges made by investors in case a company defaults on its debts. In effect you bet on a company failing to protect your investment in the event it does just that. The problem arises when large numbers of companies go bust and the CDSs themselves become worthless since no-one can pay them out.

A CDS seller undertakes to compensate a buyer if a corporate bond defaults. Since there is no limit to the size of cover taken out, the value of CDSs often exceeds a company’s debts. Moreover, many CDSs are bought with borrowed money so the infection of the system drives deep into the financial heartland like veins in a blue cheese.

The danger now is debt deflation: a rapid reversal of debt issuance, or deleveraging as it is called.

Tim Congdon of the London School of Economics says, “Banking system capital is being wiped out. The risk is that this could lead to a contraction of credit and set off a self-reinforcing downward spiral, leading to the sort of debt-deflation we saw in the 1930s.

“It is already clear that money growth has ground to a halt over the past three months. We must prevent it from actually contracting. If the Fed and European Central Bank don’t cut interest rates soon, it is going to be a problem.”

The Bank of England’s rigid inflation target, set by Gordon Brown when inflation was low, is now a millstone round Mervyn King’s neck at a time when energy, food and commodity price rises are being imported from global markets.

The Eurozone is similarly caught in a time warp relating to Germany’s neurotic fear of hyperinflation. Add the growing divergence between euro economies and a far deeper than necessary downturn is guaranteed for Western European countries.

America is already suffering a double blow: the fading of the effect from the summer tax stimulus and a loss of export competitiveness as the dollar rises.

What began as bad government, worse regulation, grasping banks, financial structures that lacked resilience because they were built on sand, have left us with a perfect storm that is about to come ashore and swallow large parts of the economy.

Still no good news on the macroeconomic front.

American investment bank Goldman Sachs believes that America will lead Britain and Europe out of the credit crunch.

In many ways that’s a statement of the obvious since the U.S. economy is usually nine months to a year ahead of its transatlantic partners. And whereas Ben Bernanke at the FED and the Government in Washington have pulled out all the stops to limit the damage, Britain and the eurozone have been slow to react and have concentrated their fire on the dangers of inflation.

David Viniar, Chief Financial Officer at Goldman’s said, “March was the low point up until now, but if I try and predict the future, I am likely to be wrong.

“Do I think we are through? No, I don’t, but I think there is a lot behind us. Now there is less concern about systemic liquidity risk. People are focused individual investments and credit.”

The real danger now appears to be inflation, driven by oil and food prices. That would be reduced by a worldwide downturn. Experience tells us though, that once inflation sets in, it’s a long hard slog to get rid of it, simply because the remedy is recession itself.

Goldman Sachs appears to be enjoying a “flight to quality” effect as the economic downturn hits America. Its position is strong, since it seems to have avoided the worst losses in the structured investment vehicle scandal. Investors now see the bank as a safe haven.

A version of this article appeared in Syntagma recently.

As we predicted here, this credit crunch cum downturn cum recession cum slump cum … was always going to happen in slow motion. That’s because of the normal lags involved in the transfer of economic conditions between countries and continents. Britain is said to be around nine months to a year behind America.

While the U.S. downturn started at the back end of last summer, it’s only now starting to decimate the British economy and parts of the eurozone. If we want to know how bad it’s going to get, we only need to peer across the Pond.

Gold rushes come and go in the world’s innovation capital, California. But when they go … they really go.

The City of Vallejo in California has filed for Chapter 9 bankruptcy, making history it seems. Half Moon Bay, home to some internet digerati, may well be next. According to John Moorlach, Orange County board chief, “This is the tip of the iceberg: everybody is going to line up for Chapter 9 in California.”

What can it mean to people on the ground when their city goes belly up? What of their assets, houses etcetera? It will be interesting to watch this pan out.

According to Goldman Sachs and Lehman Brothers American house prices are likely to fall 25pc from peak to trough. With between 10m and 12m households in negative equity already, there’s still a way to go.

Shares across the developed world are set for big falls too. Albert Edward Société Générale’s global strategist says, “Nowhere and nothing will be immune. We are on the cusp of an equity meltdown that will slash and shred portfolios. We see a global recession unfolding. Liquidity will drain away and crush the twin emerging market and commodity bubbles. The recent hope that ‘the worst might be over’ is truly staggering. Profits are disintegrating.”

Ambrose Evans Pritchard of the Telegraph (UK) — ever the Cassandra (rightly so, in my view) — says pointedly, “Britain, Europe, Japan, and China will go down before America comes back up. This is turning into a synchronised bust, after all. The Global Slump of 2008-09 is under way.”

The Bank of England and the European Central Bank are still stubbornly refusing to cut rates because of inflation fears, which will be the least of our miseries in the next two years and should abate soon as global demand falls off the much-imagined cliff.

It’s probably true that Ben Bernanke’s Federal Reserve has saved the U.S. and other countries from another Great Depression. But nothing can stop a slump now because it’s already happening.

I’ve written a post in Syntagma on how 9/11 caused the credit crunch and most of the problems now facing the world.

These problems include, rocketing food prices, chronic wars in the Middle East, the credit crunch, high oil and commodity prices, and the slow motion global recession.

On the credit crunch. Economist Joseph Stigler’s book The Three Trillion Dollar War argues persuasively that Alan Greenspan’s policy of holding interest rates below optimal levels, for longer than anyone deemed necessary, was aimed at masking the enormous cost of the Iraq war on the American economy.

Together will rising house prices, the loose policy opened the way to a splurge of mortgage lending to the U.S. trailer-park poor, the sub-prime end of the market, and the rather guilty repackaging of it into faux Triple-A assets, which were sold on around the world. From those actions, we now have the words “Great Depression” hanging over us again.

On commodity prices, led by oil, now standing at close to $120 a barrel and its knock-on effect in all other markets, especially food, the same argument applies.

“In an inflationary environment, merchants tend to hoard their stocks in warehouses, betting on higher prices down the line. It’s a one-way bet right now, so a lot of the world’s grain output is locked away, pushing up prices at an even greater rate and shoving millions into hunger.”

Read the whole of the article.