If machines were replacing human workers, productivity would have gone up. It hasn't.
How 14 of the world's largest currencies fared against the dollar in 2011.
One frequent criticism of the payroll tax cut is that because it is temporary, it will have little effect on investments. However, depending on its length, it will still have an effect on shorter term investments.
More and more people are dropping out of the labor force in favor of further education. But they're doing it because they think they have to.