Date de référence pour l’entrée à l’école et calendrier des naissances : aucune preuve de décalage en Espagne

School-entry cut-off dates may incentivize parents to delay or hasten births due near the cut-off. Research has documented this behaviour in Asian countries, where educational competitiveness tends to be intense. Using an extensive database extracted from administrative registers, we analysed such birth shifting for Spain but found no evidence of this behaviour among Spanish parents. Our results hold even when stratifying the sample by mother’s educational attainment and country of birth. These findings not only confirm the distinction between European and Asian contexts; they also serve as a robust empirical ground for those works that assume randomness in births around the school-entry cut-off in regression discontinuity designs.