There was a bubble (by your definition) in swine flu shots recently - but the fact that these are denominated in dollars has nothing to do with the bubble. Monetary policy would not correct the valuation. The current issue, the Fed is now supposed to police the non-FedReserve banks for risk, but there is no objective measure. The Federal reserve is likely to make similar errors in evaluating secondary market securities risks as investors..
I already did in post 126. The semiconductor industry valuation increased at hyper exponential rates (Sornette's definition of bubble) in the 1970s. They transitioned away from these extreme valuation growth rates without a major crash. That's not just benign, it's a net positive that we can grow a new industry at such rates. The problem I proposed is that the Fed is not clever enough to distinguish the next benign/positive semiconductor bubble from the next dot-com bubble. There have been two little bubbles and busts in wheat prices since 2002 - benign.
You might enjoy this, tho he and his collegues have a lot of good web papers.
http://www.amazon.com/Why-Stock-Markets-Crash-Financial/dp/0691096309
The book is a little dated compared to his recent work, but the point is that bubbles can be characterized as hyper exponential growth in value, and end in a "regime change" which may involve reduced growth, negative growth or a bust.
That's a trivial but true statement We all know the market will go up and down ,we just don't know when .... and of course it's meaningless to claim that we "know" anything useful on that basis. If investors actually
believed that the risk of a bust was large they would have sold. That they didn't sell is proof that they did not see the risk of a bust as sufficient to act on, up to the actual bust. If you think that pro investors are dumb enough to buy-and-hold while risk rises to unacceptable levels you are wrong.
If you consider the dot-com bubble/burst then one can easily argue that there is no solid ground for the "intrinsic value" that Tippet claims is the key. It's based on future growth and that is fundamentally unknowable except ex post facto. For example Yahoo value had some hiccups, but it was never vastly overvalued. OTOH the valuation of JDS Uniphase (a fiber optic supplier) took a huge harsh crash - the valuation was IN HINDSIGHT far beyond the "intrinsic value". Who is brilliant enough to foresee the future clearly enough to distinguish these ? Obviously not very intelligent highly motivated investors. Just as obviously not the Fed.
So I disagree. Yes Goldman-Sachs seems to have been the first to actually act on the increasing risk and they got away half-scorched. But their very exit was in part the trigger for the bust. Nearly everyone else was caught flat-footed. Your argument that they "knew" but didn't sell isn't a realistic description. More accurately many investors had increasing concern about risk (uncertainty of risk, not knowledge), but not enough to justify selling.
The other point is that a bust is NOT the necessary consequence of a bubble. The growth estimations can be realized and also become easier to estimate ... so then the high pricing can stabilize and value pricing becomes more easily estimable. Sometimes the punchbowl is emptied by 10pm and everything works out fine. Again see Sornette.
Anyone invested in MBSs or the securitization would gladly have given up 1% to avoid the sort of risk involved IF THEY SAW IT. They didn't evaluate the risk accurately and neither would the Fed.
OK well you got a lame quote in so here is mine - Generals always prepare to fight the last war. Similarly we can arm the Fed to examine risk in investment banks and secondary securities, but that just means that growth will be curtailed there and the risk and some bubble will appear elsewhere. Actually it always comes from an unexpected source, the watched pot may not boil, but there are plenty of unwatched pots. We are chasing the problem farther into the hidden spaces where it may be more damaging.