"Roger Congleton's notes on the credit crisis
They are a good outline to many events behind the current crisis; many of you have been writing to me and asking for background reading.
Another of my colleagues, David Levy, just published this short piece (with Sandra Peart) on the ratings agencies and the idea of experts."I'm getting a bit depressed reading these things, but there are some good points being made.
Here from Congleton:
"(b) New regulatory regimes also have to take account of the internationalization of financial
markets and its greater speed and interconnectness.
[At a minimum, such regulations should produce greater transparency about the nature of
the assets in various derivatives, about the size of these markets, and their capitalization.
Markets cannot do their magic, unless, at least some good information is available about
risks and returns for all the assets in the market. Even honest “insiders cannot do it all.
“Trust” and theories of asset pricing can take world financial markets only so far.
Many investment firms also evidently need better internal regulation and incentive
structures. A few bad apples or decisions can ruin great financial firms.]"
And more:
"(2) The current plan, if well managed, can mitigate problems associated with the
inadequate demand and loss of insurance, but not completely reverse it. Some losses
are “real.”
Here's from the Levy and Peart piece:
"Those who made the ratings became like expert witnesses in court, seeing things the way their clients, the firms holding the securities and offering them for sale to you and me, wanted things to be seen. The problem was that shoppers, like a jury, did not have the ability to average out different pieces of testimony to help remove the bias. As long as experts were trusted and the market didn't know the difference between unbiased and biased estimates, the trick worked marvelously. The collapse followed suddenly as we have all come to understand that the ratings were miserably biased.
All of this is a telling lesson about how much and when to trust the experts. This is especially so now that a new set of experts is attempting to get us all out of the mess we're in."
Can someone tell me how to regulate bias?
No comments:
Post a Comment