How Important are Omitted Variables, Censored Scores and Self-selection in Analysing High-school Academic Achievement? . The Australian Journal of Labour Economics, [S. l.], v. 14, n. 3, p. 307–332, 2011. Disponível em: https://www.ajle.org/index.php/ajle_home/article/view/232.. Acesso em: 16 apr. 2026.