That is what AIG

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.