Q means quarter. The Y axis is percentage points. My guess is we're talking growth as a percentage of GDP.
The basic blue line is the Obama proposal-that is, expectations if the propsal goes into effect. The dotted blue line would be the "adjusted" proposal. You'll note that the Obama proposal will just barely get us into positive growth territory, whereas the dotted proposal won't.
What's complicated? None of this has to do with economics even. It's just reading graphs. You should have learned that in high school. Probably in senior year.
Hmm... the bars are kinda weird come to think of it. Also, remember: this isn't a graph he made. This is him presenting a graph he found elsewhere that he thought was a pretty good indicator of the information that policy makers should be looking at.
edited 18th Sep '11 7:53:48 PM by TheyCallMeTomu