Investors should be very cautious about jumping back into stocks considering the global economic turmoil and how much it will take to turn things around, Morgan Stanley Asia Chairman Stephen Roach told CNBC Tuesday.
"We just can't lose sight of where we've been over the last month and what are the forces that have taken us to this very difficult place for the markets and the world and how difficult it is going to be to work our way out of this in any expeditious fashion," Roach said.