Once again I have a real novice question.
"The whole market is generally down, and its concern over the US economy at the heart of the problem," Mr Buckley told AAP.
I saw the above in the 'Fairfax Trading Room' news not long ago. Why is this, why is the covern over US the heart of our problerm? So if one was to keep up with the general US economy it Aus will more then likely follow the same up or down direction?