|
PureBytes Links
Trading Reference Links
|
>For any given time period, some system will be the best.
what given period of time? most people have a very short view of what a
period of time is..
>The problem is that systems don't stay the best. Take a look at What Works
on Wall Street. James P. O'Shaughnessy compared a lot of different stock
selection criteria. He found that some criteria worked very well for a
decade or more, but lost money over the long haul. He isolated the best
performing strategy over the long haul, but the mutual funds based on this
strategy have massively underperformed
the overall market over the last few years.
then what he is looking at is mathematically flawed from the beginning, else
it would hold up over the long haul. the problem is one of feelings and
those feelings get in the way when looking for the truth.
mb
>== Rob ==
|