Minimum wage

Over on Carpe Diem, Mark Perry graphed teenage unemployment on the same graph as the minimum wage, but first, he subtracted the overall unemployment rate off of the teenage one--this gives, what he calls, "excess teen unemployment", or the increase in unemployment among teenagers above and beyond the general unemployment numbers.

It shows a tight correlation between the rise in the minimum wage and the teen unemployment rate:

From Carpe Diem:
"Bottom Line: As much as politicians and other advocates of the minimum wage might pretend otherwise, the laws of supply and demand (like the law of gravity) are NOT optional."