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"Une \u00E9tude de l\u2019Institut des politiques publiques a estim\u00E9 le co\u00FBt de ce dispositif \u00E0\u00A0l\u2019efficacit\u00E9\u00A0contest\u00E9e."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.lemonde.fr/education/article/2015/01/28/le-redoublement-coute-2-milliards-d-euros-par-an-a-l-etat_4565209_1473685.html>