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This paper estimates the impact of private education on the academic achievement of low-income students in Chile. To deal with selection bias, we use propensity score matching to compare the test scores of reduced-fee paying, low-income students in private voucher schools to those of similar students in public schools and free private voucher schools. Our results reveal that students in fee-charging private voucher schools score slightly higher than students in public schools. The difference in standardized test scores is approximately 10 points, a test score gain of 0.2 standard deviations. We find no difference in the academic achievement of students in the private voucher-fee charging treatment group relative to their counterparts in free private voucher schools. Variables used in the analysis are appended. (Contains 13 tables and 31 footnotes.) [Funding for this research was provided by Fondecyt, the Fulbright Commission, and PBCT-CONICYT Project CIE-05.]

Effects of ethnic/racial diversity among students and faculty on cognitive growth of undergraduate students are estimated via a series of hierarchical linear and multinomial logistic regression models. Using objective measures of compositional, curricular, and interactional diversity based on actuarial course enrollment records of over 6,000 students at a public research university, the study finds no patterns of positive correlation with objective measures of cumulative academic achievement (i.e., final graduating GPA, GRE/GMAT test scores, graduate school enrollment) net of academic preparation at college entry and socio-demographic background, and with or without accounting for academic major, college curricular experience, and financial aid. Results are consistent with student self-assessed level of critical thinking skills after graduation, but not with self-assessed level of understanding of racial and cultural issues, both affective outcomes showing a positive correlation with curricular diversity. As the findings contradict most of the higher education literature on survey-based cognitive benefits of ethnic/racial diversity, the study calls for use of objective measures to advance the research in this area. (Contains 19 tables, 4 graphs and 10 footnotes.)

In school finance lawsuits plaintiffs often claim that pay levels are not sufficient to recruit teachers who can deliver constitutionally-mandated levels of educational services. In this paper I consider several ways in which one might bring economic theory and data to bear on that question. I conclude that at present, and at least for the near term, education research cannot prescribe an "adequate" level of school spending on teachers, whether in the form of pay, benefits, or professional training, that can reliability predict a target level of student performance. If courts are predisposed to intervene in this matter, a more reasonable standard for "adequacy" is whether available revenues, when spent in an efficient manner, are sufficient to staff classrooms with appropriately-certified teachers in a flexible licensing regime that satisfies both state and federal teacher quality standards. (Contains 6 figures, 7 tables and 15 endnotes.)