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Jeudi 15 Décembre 2011 - de 14h à 15h30, Salle S016, INSEE-MK2, 15 Boulevard Gabriel Péri, 92245 Malakoff Cedex (Métro : Malakoff/Plateau de Vanves)

Kevin LANG (Boston University)

"School Entry, Educational Attainment and Quarter of Birth :
A Cautionary Tale of LATE"

avec Rashmi BARUA



Partly in response to increased testing and accountability, states and districts have been raising the minimum school entry age, but existing studies show mixed results regarding the e¤ects of entry age. These studies may be severely biased because they violate the monotonicity assumption needed for LATE. We propose an instrument not subject to this bias and show no e¤ect on the educational attainment of children born in the fourth quarter of moving from a December 31 to an earlier cuto¤. We then estimate a model that reconciles the di¤erent IV estimates including ours. We .nd that one standard instrument is badly biased but that the other diverges from ours because it estimates a di¤erent LATE. We also .nd that an early entry age cuto¤ that is applied loosely (as in the 1950s) raises educational attainment but one that is strictly enforced lowers it.