free trade / U.S. Competiveness Ping
Thanks for the ping. Sorry I missed this one.
All I know is that sophisticated multidimensional signal processing algorthims are used to track and predict markets...and still people make mistakes.
Some of the graphs and data I see presented which puport to prove a trend are IMO childishly simplistic in their assumptions and methods.
Beware of the weighted average! People sometimes use it as a subtle ploy to get somebody to agree with their foregone conclusions...