1. Free to Choose: Can School Choice Reduce Student Achievement?
2. Using experimental economics to measure the effects of a natural educational experiment on altruism
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4. Costrell, R. M. (2008). The fiscal impact of the Milwaukee parental choice program in Milwaukee and Wisconsin, 1993–2008 (SCDP Milwaukee Evaluation Report 2). University of Arkansas Department of Education Reform. Retrieved from http://www.uaedreform.org/downloads/2008/02/report-2-the-fiscal-impact-of-the-milwaukee-parental-choice-program-in-milwaukee-and-wisconsin-1993-2008.pdf