Quote from marketsurfer:
Thanks for the info. I was not aware of the study. My take away would be that computers make the best traders of all ( zero emotions)-- we are witnessing this with HFT.
Much of HFT looks at the book to make decisions, not past price movement, it is proactive not reactive. Reactive is weak (TA). Proactive is strong (HFT). Look at the evidence.
Surf
Seems to me that any algorithm, regardless of frequency, would replicate the lack of emotion. A computer programmed to trade once per day would lack emotion the same as one programmed to trade thousands of times per second.
Also, looking at the book is only "proactive" if in fact all of the trades sitting in the book get executed, no? If I look at the book at t=0 and it triggers a trade at t=1, there is no guarantee that at t=2 the book will still support my trade decision. The time difference between 0, 1 and 2 can be nanoseconds, it still ends up with the same uncertainty regarding actual execution or the continued presence of the orders in the book at t=0.
There is no way around uncertainty.
