The 30-year fixed-rate mortgage typically moves with 10-year Treasury yields, which are influenced by long-term expectations for the economy.

Stability: Shrinkage is 3 percent MC change resulting in a 1 percent size change and is essentially the same in the radial and tangential directions (across the grain directions).

A streamline is a line that is tangential to the instantaneous velocity direction (velocity is a vector, and it has a magnitude and a direction). To visualize this in a flow, we could imagine the ...