This mortgage crisis could last a long time. House prices now down 10% could fall 30%. Losses on these mortgages could total $400 billion or 3% of total economic output. Similar to the losses in the savings and loan crisis of the eighties. The complexity of the crisis cuts two ways in one respect it prolongs the crisis because it makes it very hard to figure out what is inside which kind of package of securtieis and who holds them. Mortgages are dispersed among banks and 11,000 investment pools each with hundreds or thousands of investors. And many of these pools have been further repackaged into specialized funds known as structured investment vehicles and collaterized debt obligations that were created for these mortgages. It requires huge computing power and lots of people to figure out what is inside each package of securties. And the other effect is that because of this opaqueness or lack of transparency no one in the banking system knows who has large exposure and may run into difficulties like a Northern Rock bank in Britain or a Citigroup or UBS so that banks are not keen on lending to each other and raises the bank lending rate to each other. Banks also want to increase their reserve as a cushion against hidden losses and so are afraid to lend and lend at higher rates and after asking for stringent terms from lenders. This will create a prolonged period of credit tightnesss which would affect business expansion in a serious way. On the other hand as said earlier it cuts 2 ways and the positive side to this is that the losses tend to be overestimated in a crisis with lack of transparency or high degree of opaquenesss as Seidman who was a key person in settling the Savings and Loan Crisis told the National Press Club this month. Another negative efect in terms of credit availability for business is that there is less demand for securities in this kind of environment and business cannot get that much money from the capital markets. Cerberus found this out quickly when it found few buyers for the securities it hoped to sell to fund a portion of its buyout of Chrysler. One thing that will help the US as this crisis plays out is the better picture for exports with a falling dollar.The larger companies with international operations will have more business overseas and will export more to other countries especially to the high growth countries like China, India, Russia and Brazil as well as other countries in South America, Asia and Europe. Infrastructure spending will be huge in these countries and companies like General Electric, Caterpillar and others will benefit and companies like GM will expand more overseas. This should help the dollar and the current account deficit in a few years. It would also cushion the blow from this crisis. Overall this crisis could play out for longer than 3 years if consumer spending deteriorates significantly in 2008-2009. ...