Germany has an unemployment rate 1.5 points less than America. If we can attribute the bulk of that to the artificial spread between supply and demand of labor due to price fixing (minimum wage) then the difference would be 2.5 million people would be in the workforce.
Here in Germany we don't have one and there are people working for wages as low as 3€ per hour[1]. That is 4.07$.
[1] http://translate.google.com/translate?sl=de&tl=en&js=n&prev=...