Quoted from a Megan McArdle piece:
This brings me to a pet peeve that has been increasingly irritating me as the crisis wears on: people with little or no understanding of markets confidently opining on the causes of the crisis. Funnily enough, the cause of the crisis is always exactly what they happened to be against before the crisis happened, and the solution is for the people they disagree with to be banned from polite society and exiled from the political process.
What is most infuriating is that the people who know the least are the most confident about their appraisals. Anyone with any sort of expertise in the field knows that no one understands this crisis very well. Economists all over the ideological spectrum are rethinking the lessons we thought we had learned from the Great Depression and the Japanese experience. As it unfolds, we will no doubt be seriously rethinking our model of the relationship between the financial markets and the real economy.
The problem is, ignorant people who have somehow gotten hold of one or two precious facts, and brandish those facts like a mighty Sword of Truth, are superficially convincing. They are convincing because they misunderstand the situation in, well, the way that ignorant people misunderstand it. The stories they concoct are therefore very convincing to the ignorant, except those who have an ideological predisposition to doubt their story. Those ignorant people are busy listening to some other huckster peddling financial snake oil.
No one who did not know what a CDO was before the crisis should be opining as to the causes or the possible solutions. And anyone who tells you that they understand exactly why this happened, why we got this crisis instead of the dollar crisis we were expecting, and what kind of regulations will unquestionably fix it, is definitionally too ignorant to be opening their mouth.
