2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/154479We show that the set of Misiurewicz maps has Lebesgue measure zero in the space of rational functions for any fixed degree greater than or equal to 2 (generalising the earlier version math.DS/0701382).To appear in Communications of Mathematical PhysicsDynamical Systemstext