As I write this, the national debt is about $16.8 trillion dollars. What is the current Treasury bill rate? Is that rate low or high? If you consider the Loanable Funds Theory, does that level of interest rates make sense? Why or why not? Also, there are several theories about the reason the yield curve is shaped the way it is and why it changes from time to time. What are they? Is there one that you believe explains the shape better than the others? Why? Is there a place you can visit that would give you evidence of the shape of the yield curve at the present time?