Why educated mothers don't make educated children? : a statistical study in the intergenerational transmission of schooling
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- Discussion Papers 
Abstract: More educated parents are observed to have better educated children. From a policy point of view, however, it is important to distinguish between causation and selection. Researchers trying to control for unobserved ability have found conflicting results: in most cases, they have found a strong positive paternal effect but a negligible maternal effect. In this paper, I evaluate the impact on the robustness of the estimates of the characteristics of the samples commonly used in this strand of research: samples of small size, with low variability in parental education, not randomly selected from the population. The part of the educational distribution involved in any identification strategy seems to be a key aspect to take into account to reconcile previous results from the literature. Keywords: intergenerational transmission, education, twin-estimator, sibling-estimator, power of the test.