Broadly speaking, if you look at the unemployment rate, which is kind of your best basic measure of the labour force tightness, we expect the unemployment rate to continue to rise through the early part of next year, but it will quickly fall thereafter. Part of that comes from job creation, but the other big factor is that there just aren't going to be as many people coming in for a net increase in the labour force.
As people retire we're going to have increasing difficulty replacing retirees. So within a couple of years we're going to see the unemployment rate back below 7% and back into the range of what we were experiencing in 2007 or so. We do think it will become an issue again, and fairly quickly: not in a span of five or six years, more like two or three.