1. Informing the Debate: Comparing Boston's Charter, Pilot, and Traditional Schools;Abdulkadiroglu,2009
2. Selection on observed and unobserved variables: assessing the effectiveness of Catholic Schools;Altonji;Journal of Political Economy,2005
3. Student Achievement in Charter Schools;Angrist,2011
4. The Condition of Education 2013 (NCES 2013-037);Aud,2013
5. An international perspective on school vouchers;Barrera-Osorio,2009