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In July, 2009, when the US Federal minimum wage was increased from $6.55 to $7.25, individuals in nearly one-third of all states were unaffected, since the state minimum wage already exceeded $7.25. We use this variation to make comparisons of the employment of low-skill workers with their peers across states and with workers within states who were arguably unaffected by the increase, using DID and DIDID methods. Our data come from the 2009 Current Population Survey, 4 and 5 months before and after the increase. We find little evidence of negative employment effects for teens or less-educated adults. Further control for demographic characteristics and state fixed effects have relatively small effects on the size and significance of estimated effects.

Employment Effects of the 2009 Minimum Wage Increase: New Evidence from State-Based Comparisons of Workers by Skill Level