By now everyone and their dog has heard about Jerome and the €4.9 billion he lost his employers by playing around with equity derivatives. A decent explanation of the machinations is here. The Daily Mash is (as ever) slightly over the top in ascribing it all to his working (quelle horreur) more than 30 hours a week but even The Guardian notes that he didn't take a single day's holiday in eight months!
But there's one very important point that I haven't seen mentioned anywhere else, a by product of the fact that he lost the money in equity derivatives. That point is that over the system as a whole, there has been no net loss at all. To understand this Willem Buiter's concept of "inside instruments " is very useful.
Another way of putting this is that derivatives trading is a zero sum game. Risk gets shuffled around (a good thing) but at the system level, rather than that of the individual company or trader, no money is made or lost.
For with each and every one of the contracts that Kerviel made there was a counter-party. If we ignore the trivial sums paid to the marketplaces and clearing houses, each and every euro that he lost on said contracts was made by said counter-party.
This obviously isn't going to be of much comfort to Societe Generale and its shareholders, just as much as it will be a comfort to those who now have that €4.9 billion. But no wealth or money was "lost" in this case: rather, it was transferred.

This is the crux of the case for 'affirmative action.' But to discriminate in favour of some groups has to involve unfairly discriminating against others. Although it is called "positive discrimination," it still means giving positions and jobs to those less qualified than other applicants. Since no one alleges that the other applicants have personally committed discrimination, they are being treated unfairly. This practice pigeon-holes people into ethnic and minority boxes, rather than treating them on their individual merits.
When the law holds people in custody it has them as prisoners. Since they have not been before a court and convicted of a crime, we must be careful that this custody does not constitute a sentence without trial. If the authorities can hold people indefinitely to question them and gather evidence, they will not need a trial to sustain what is, in effect, a prison sentence. This is why the law forbids them to do so for long periods. They are required to produce the accused in person before a court of law. It is called habeas corpus and is one of the cornerstones of our liberties. The law cannot hold us incommunicado; it must produce us in the body.
In a recent article in the Sunday Times property section, Phil Spencer