Tyler Cowen asks whether the Chinese economy will crack up in five years.
Mark Thoma asks what will happen to the U.S. saving rate.
Ken Houghton asks whether the dollar will still be the reserve currency.
I ask whether the U.S. will have a debt crisis.
Seems like we are focused on international macro performance and debt issues. (Mark Perry asks for an assessment of the seriousness of a bunch of issues, and fiscal debt crises came out number one. The answers come from a larger--but still non-random--sample than just the five of us)