Let’s first highlight the major results. Dube uses the latest in minimum-wage statistics and finds a negative relationship between the minimum wage and poverty. Specifically, raising the minimum wage 10 percent (say from $7.25 to near $8) would reduce the number of people living in poverty 2.4 percent. (For those who thrive on jargon, the minimum wage has an “elasticity” of -0.24 when it comes to poverty reduction.)
Using this as an estimate, raising the minimum wage to $10.10 an hour, as many Democrats are proposing in 2014, would reduce the number of people living in poverty by 4.6 million. It would also boost the incomes of those at the 10th percentile by $1,700. That’s a significant increase in the quality of life for our worst off that doesn’t require the government to tax and spend a single additional dollar. And, given that this policy is self-enforcing with virtually no administrative costs while challenging the employer’s market power, it is a powerful complement to the rest of the policies the government uses to boost the living standards of the worst off, including the Earned Income Tax Credit, food stamps, Medicaid, etc.
Now, this is normally the part where we’d have to go through the counter-arguments, using different data and techniques from different economists, to argue that the minimum wage wouldn’t do this. But this is the fun part: Dube’s paper finds a remarkable consistency across studies here. For instance, in a 2011 paper by minimum-wage opponent David Neumark, raising the minimum wage 10 percent would reduce poverty 2.9 percent (an elasticity of -0.29) for 21-44-year-old family heads or individuals. That’s very