Quote from nitro:
I don't agree with most of what is being said here.
The reason to me is really simple, at least based on the quants that I have talked to (I know several that work at Citadel): They work for firms that will reward them on the performance of their models.
So if they come up with a trading system, almost by definition it must be quantifiable, which means it can be programmed, and they don't have to sit in front of a screen buying and selling. If that system goes live, their bonus is based on the performance of that model.
So they get something like $150K - $300k a year guaranteed in salary, and then they may make 7 figures in bonus (in some cases capped no matter how well the model does) if they have a model that is being traded for the firm. For people that would be particle physicists working for $60k a year and be completely content, that is heaven from a financial point of view.
Look at Doyne Farmer and company. Read the book "The Predictors." There are plenty that have an entreprenurial spirit of forming their own trading companies like Farmer. Then there are others that choose the route of being an entrepreneur under the umbrella of another corporation.
Even Farmer eventually realized that having access to large sums of money and extremely low trading costs, with a solid backing to continue research, was/is extremely beneficial.
nitro
Right on the money, couldn't of said it better myself.