1. Achievement loss associated with the transition to middle school and high school;Alspaugh;The Journal of Educational Research,1998
2. Are middle schools more effective? The impact of school structure on student outcomes;Bedard;The Journal of Human Resources,2005
3. Berchialla, P., Cavallo, F., Colombini, S., De Simone, G., & Lemma, P. (2011). Associazione delle caratteristiche individuali, del benessere psico-fisico e del clima di classe con gli outcomes scolastici. Fondazione Giovanni Agnelli Working Paper No. 41.
4. Bratti, M., Checchi, D., & Filippin, A. (2007). Territorial differences in Italian students’ mathematical competencies: evidence from PISA 2003. IZA Discussion Paper No. 2603.
5. Brodaty, T., Gary-Bobo, R. J., & Prieto, A. (2008). Does speed signal ability? The impact of grade repetitions on employment and wages. CEPR Discussion Papers No. 6832.