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Distributional Effects Of Welfare Reform Experiments: A Panel Quantile Regression Examination, Carlos Lamarche, Robert Paul Hartley

University of Kentucky Center for Poverty Research Discussion Paper Series

In an influential article, Bitler, Gelbach and Hoynes (American Economic Re- view, 2006; 96, 988-1012) illustrate the importance of estimating heterogeneous impacts of welfare reform experiments. They find that the mean treatment effect offers an uninfor- mative summary of opposing effects, while the treatment effects are significantly different across quantiles. We replicate their results and evaluate the robustness of their findings to accounting for individual-specific heterogeneity possibly associated with welfare program participation. We find results that are in general similar to Bitler’s et al. findings, although the interpretation of labor supply effects in the upper tail is revised. We find …