This paper brings a new perspective to the analysis of the Mariel supply shock, revisiting the question and the data armed with the accumulated insights from the vast literature on the economic impact of immigration. A crucial lesson from this literature is that any credible attempt to measure the wage impact of immigration must carefully match the skills of the immigrants with those of the pre-existing workers. The Marielitos were disproportionately low-skill; at least 60 percent were high school dropouts. A reappraisal
of the Mariel evidence, specifically examining the evolution of wages in the low-skill group most likely to be affected, quickly overturns the finding that Mariel did not affect Miamiís wage structure. The absolute wage of high school dropouts in Miami dropped dramatically, as did the wage of high school dropouts relative to that of either high school graduates or college graduates. The drop in the relative wage of the least educated Miamians was substantial (10 to 30 percent), implying an elasticity of wages with respect to the number of workers between -0.5 and -1.5. The analysis also documents the sensitivity of the
estimated wage impact to the choice of a placebo. The measured impact is much smaller when the placebo consists of cities where pre-Mariel employment growth was weak
relative to Miami.