Vale at risk maudley's data went into it from a historic e set that did not have, and could not have, the extreme events which gave rise to the crisis in it. So i don't know what level of capital banks should have. I don't believe anyone can sensibly clansify. And we dond spell up as i'm sure you done it before.
John Kay and Mervyn King talk about their book, Radical Uncertainty, with EconTalk host Russ Roberts. This is a wide-ranging discussion based on the book looking at rationality, decision-making under uncertainty, and the economists' view of the world.