Slashdot Mirror
Wall Street and the Mismanagement of Software
CowboyRobot writes "Last week, a bug in high-frequency trading software from Knight Capital Group resulted in erroneous trades costing almost a half-billion dollars. So, what went wrong and how can they, or any other software developer, prevent something similar from happening again? In hindsight, it's clear that the developers did not verify the code under enough conditions. But the real issue is how these high-frequency trades work in the first place. Robert Dewar at Dr. Dobb's suggests the financial industry needs to take a page from the avionics rulebook, which has very strict guidelines about what code can be implemented due to the high cost of failure in that field. 'High-frequency automated trading is not avionics flight control, but the aviation industry has demonstrated that safe, reliable real-time software is possible, practical, and necessary. It requires appropriate development technology and processes as well as a culture that thinks in terms of safety (or reliability) first. That is the real lesson to be learned from last week's incident. It doesn't come for free, but it certainly costs less than $440M.'"
The really troubling thing (to my mind) is not so much the 'what does Wall St. produce?' question(which, as you note, is ostensibly 'capital allocation'; but the 'how efficiently do they actually produce it?' question.
In a non-pathological market situation, you would hope to see Wall St.'s share of the economy as a whole be static or declining(as newer technology makes allocating capital easier and less expensive) and the demand for 'capital allocation' exist only so far as other business sectors find that more efficient capital allocation makes them more efficient and productive(in the same way that you would want to see any other support function of a business kept in line with the business overall. You wouldn't want your IT group consuming a greater percentage of your total economic output every year). Trouble is, that isn't what the numbers reflect.
Instead of acting as other suppliers do, and having their health and size depend on the success of the customers, the financial services sector has managed to capture a steadily increasing share of the value relative to other sectors. Absolute growth would be one thing, if the economy as a whole is growing; but relative growth, in terms of percentage of total output captured, suggests a substantial increase in the market(and regulatory) power of financial services without necessarily any increase in the value of their product to their customers. That is bad.
This increase in the relative growth of the financial sector was one of the predictions in Karl Marx's Das Kapital: He saw bond markets and stock markets as the natural and predictable outgrowth of the role of a capitalist, which in his view was somebody who made their living not by producing stuff but by buying the means of production and making other people produce stuff. Bonds in particular simply abstract the concept completely away from any actual work: The capitalist now doesn't even do the buying and managing himself, but buys bonds allowing somebody else to do that work and demands a portion of the proceeds of the firm in return. As the capitalist class gains more and more wealth, the trade in bonds and other financial instruments goes up as a percentage of the economy, while the industrial and agricultural production becomes less important.
(And no, I'm not arguing that workers of the world should unite and revolt, just that Marx was a serious economist who made some good points about how capitalism works.)
I am officially gone from