Was this because American companies had got worse at designing new products? Had the pace of technological innovation suddenly slackened? No. The proximate cause of the economic uncertainty of 2008 was financial: to be precise, a spasm in the credit markets caused by mounting defaults on a species of debt known euphemistically as subprime mortgages. So intricate has our global financial system become, that relatively poor families in states from Alabama to Wisconsin had been able to buy or remortgage their homes with often complex loans that (unbeknown to them) were then bundled together with other, similar loans, repackaged as collateralized debt obligations (CDOs) and sold by banks in New York and London to (among others) German regional banks and Norwegian municipal authorities, who thereby became the effective mortgage lenders. These CDOs had been so sliced and diced that it was possible to claim that a tier of the interest payments from the original borrowers was as dependable a stream of income as the interest on a ten-year US Treasury bond, and therefore worthy of a coveted triple-A rating. This took financial alchemy to a new level of sophistication, apparently turning lead into gold.
However, when the original mortgages reset at higher interest rates after their one- or two-year 'teaser' periods expired, the borrowers began to default on their payments. This in turn signalled that the bubble in US real estate was bursting, triggering the sharpest fall in house prices since the 1930s. What followed resembled a slow but ultimately devastating chain reaction. All kinds of asset-backed securities, including many instruments not in fact backed with subprime mortgages, slumped in value. Institutions like conduits and structured investment vehicles, which had been set up by banks to hold these securities off the banks' balance sheets, found themselves in severe difficulties.
As the banks took over the securities, the ratios between their capital and their assets lurched down towards their regulatory minima. Central banks in the United States and Europe sought to alleviate the pressure on the banks with interest rate cuts and offers of funds through special 'term auction facilities'. Yet, at the time of writing (May 2008), the rates at which banks could borrow money, whether by issuing commercial paper, selling bonds or borrowing from each other, remained substantially above the official Federal funds target rate, the minimum lending rate in the US economy. Loans that were originally intended to finance purchases of corporations by private equity partnerships were also only saleable at significant discounts. Having suffered enormous losses, many of the best-known American and European banks had to turn not only to Western central banks for shortterm assistance to rebuild their reserves but also to Asian and Middle Eastern sovereign wealth funds for equity injections in order to rebuild their capital bases.
All of this may seem arcane to some readers. Yet the ratio of a bank's capital to its assets, technical though it may sound, is of more than merely academic interest. After all, a 'great contraction' in the US banking system has convincingly been blamed for the outbreak and course of the Great Depression between 1929 and 1933, the worst economic disaster of modern history. If US banks have lost significantly more than the $255 billion to which they have so far admitted as a result of the subprime mortgage crisis and credit crunch, there is a real danger that a much larger - perhaps tenfold larger - contraction in credit may be necessary to shrink the banks' balance sheets in proportion to the decline in their capital. If the shadow banking system of securitized debt and off-balance-sheet institutions is to be swept away completely by this crisis, the contraction could be still more severe.
This has implications not just for the United States but for the world as a whole, since American output presently accounts for more than a quarter of total world production, while many European and Asian economies in particular are still heavily reliant on the United States as a market for their exports. Europe already seems destined to experience a slowdown comparable with that of the United States, particularly in those countries (such as Britain and Spain) that have gone through similar housing bubbles. The extent to which Asia can ride out an American recession, in the way that America rode out the Asian crisis of 1997-8, remains uncertain. What is certain is that the efforts of the Federal Reserve to mitigate the credit crunch by cutting interest rates and targeting liquidity at the US banking system have put severe downward pressure on the external value of the dollar.
The coincidence of a dollar slide and continuing Asian industrial growth has caused a spike in commodity prices comparable not merely with the 1970s but with the 1940s. It is not too much to say that in mid-2008 we witnessed the inflationary symptoms of a world war without the war itself.
to be continued...
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