There is robust evidence that higher minimum wages increase family incomes at the bottom of the distribution. The long-run (3 or more years) minimum wage elasticity of the non-elderly poverty rate with respect to the minimum wage ranges between −0.220 and −0.459 across alternative specifications. The long-run minimum wage elasticities for the tenth and fifteenth unconditional quantiles of family income range between 0.152 and 0.430 depending on specification. A reduction in public assistance partly offsets these income gains, which are on average 66 percent as large when using an expanded income definition including tax credits and noncash transfers.(CPS survey are asked about their income during the year 2012. 2 Most results in this paper are for the non-elderly population; so, when I refer to "the poverty rate," I am referring to the poverty rate among those under 65 years of age. Also, as a matter of terminology, in this paper, virtually all elasticities are elasticities with respect to the minimum wage. For brevity, I will sometimes refer to "the elasticity of the poverty rate with respect to the minimum wage" as either "the minimum wage elasticity for the poverty rate" or simply "the poverty rate elasticity." The same is true for elasticities of other outcomes with respect to the minimum wage, such as family income quantiles, the proportion under one-half poverty line, etc.
AMERICAN ECONOMIC JOURNAL: APPLIED ECONOMICS OCTOBER 2019counterfactual CDF. This local inversion entails rescaling the marginal effect of minimum wages on the share above an income cutoff by the probability density of income at that cutoff. 3 I find clear, positive effects of minimum wages on family incomes below the twentieth quantile. The largest impact occurs at the tenth and fifteenth quantiles, where estimates from most specifications are statistically significant, and the longrun minimum wage elasticities for these family income quantiles range between 0.152 and 0.430 depending on control sets. In the preferred specification, the family income elasticities with respect to the minimum wage are around 0.359 and 0.332 for the tenth and fifteenth quantiles, respectively, and diminish close to 0 by the thirtieth quantile. Since the conventional income definition used for official poverty calculations does not include tax credits such as the Earned Income Tax Credit (EITC), or noncash transfers such as the Supplemental Nutritional Assistance Program (SNAP), I also estimate the impact using an expanded income definition. After accounting for tax credits and noncash transfers, the minimum wage effect on the level of family incomes (i.e., the semi-elasticities) is about 66 percent as large for the bottom 30 percent of the distribution. Overall, the evidence clearly points to at least moderate income gains for low-income families resulting from minimum wage increases. At the same time, there is evidence for some substitution of government transfers with earnings as evidenced by the somewhat smaller income increase accounting for tax credit a...