Message 25376307
<snip>The third step is to recognise reflexivity – that is to say, the mispricing of financial instruments can affect the fundamentals that market prices are supposed to reflect. Nowhere is this phenomenon more pronounced than in the case of financial institutions, whose ability to do business is dependent on confidence and trust. That means that “bear raids” to drive down the share prices of these institutions can be self-validating. That is in direct contradiction to the efficient market hypothesis.
Putting these three considerations together leads to the conclusion that Lehman, AIG and other financial institutions were destroyed by bear raids in which the shorting of stocks and buying of CDS amplified and reinforced each other. Unlimited shorting was made possible by the 2007 abolition of the uptick rule (which hindered bear raids by allowing short-selling only when prices were rising). The unlimited selling of bonds was facilitated by the CDS market. Together, the two made a lethal combination.
That is what AIG, one of the most successful insurance companies in the world, failed to understand. Its business was selling insurance and, when it saw a seriously mispriced risk, it went to town insuring it, in the belief that diversifying risk reduces it. It expected to make a fortune in the long run but it was destroyed in short order.
My argument raises some interesting questions. What would have happened if the uptick rule on shorting shares had been kept, in effect, but “naked” short-selling (where the vendor has not borrowed the stock in advance) and speculating in CDS had both been outlawed? The bankruptcy of Lehman might have been avoided but what would have happened to the asset super-bubble? One can only conjecture. My guess is that the bubble would have been deflated more slowly, with less catastrophic results, but that the after-effects would have lingered longer. It would have resembled more the Japanese experience than what is happening now.
What is the proper role of short-selling? Undoubtedly it gives markets greater depth and continuity, making them more resilient, but it is not without dangers. As bear raids can be self-validating, they ought to be kept under control. If the efficient market hypothesis were valid, there would be an a priori reason for imposing no constraints. As it is, both the uptick rule and allowing short-selling only when it is covered by borrowed stock are useful pragmatic measures that seem to work well without any clear-cut theoretical justification.
(bd's bolding for emphasis)<snip>
Much more at the above link. |
