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Helen F. Ladd
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Journal Articles
Publisher: Journals Gateway
Education Finance and Policy (2023) 18 (4): 738–752.
Published: 25 September 2023
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Access to high-quality teachers in K–12 schools differs systematically by racial group. This policy brief reviews the academic research documenting these differences and the labor market forces and segregation patterns that solidify them. It also presents new analysis of differential exposure in North Carolina of white, black, and Hispanic students to teachers with different quality-related credentials across five grade–subject combinations. White students are most often in classrooms taught by teachers with strong credentials and least often by those with weak credentials, not only across the state as a whole, but also within most of the state's counties, especially those whose schools are most segregated by race. To address such disparities, decision makers at all three levels—state, district, and school—have various policy options to consider, with each level having an important role to play.
Includes: Supplementary data
Journal Articles
Publisher: Journals Gateway
Education Finance and Policy (2020) 15 (1): 191–208.
Published: 01 January 2020
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A significant criticism of the charter school movement is that funding for charter schools diverts money away from traditional public schools. The magnitude of such adverse fiscal externalities depends in part on the nature of state and local funding policies. In this paper, we examine the fiscal effects of charter schools on both urban and nonurban school districts in North Carolina. We base our analysis on detailed balance sheet information for a sample of school districts that experienced substantial charter growth since the statewide cap on charters was raised in 2011. We find a large and negative fiscal impact in excess of $500 per traditional public school pupil in our one urban school district, which translates into an average fiscal cost of about $3,600 for each student enrolled in charter schools. We estimate comparable to somewhat larger fiscal externalities per charter school pupil for two nonurban districts.
Journal Articles
Raising the Bar for College Admission: North Carolina's Increase in Minimum Math Course Requirements
Publisher: Journals Gateway
Education Finance and Policy (2019) 14 (3): 492–521.
Published: 01 July 2019
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We explore the effects of a statewide policy change that increased the number of high school math courses required for admission to four-year public universities in North Carolina. Using data on cohorts of eighth-grade students from 1999 to 2006, we exploit variation by district over time in the math course-taking environment encountered by students. Purely as a result of a student's year of birth and location, students faced different probabilities of encountering a sequence of math courses sufficient to qualify for admission. Within an instrumental variables setup, we examine effects of this policy shift. We find that students took more math courses in high school following the state's announcement, with relatively larger increases for students in the middle and bottom quintiles of their eighth-grade math test scores. Our results suggest this increased math course-taking led to higher high school graduation rates. It also led to increases in enrollment rates at universities in the University of North Carolina system, with the largest increases being in the quintiles of student achievement from which universities were already drawing the bulk of their enrollees. Finally, we find scant evidence of boosts in post-enrollment college performance due to increased math course-taking in high school.
Journal Articles
Publisher: Journals Gateway
Education Finance and Policy (2017) 12 (4): 536–563.
Published: 01 October 2017
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A defining characteristic of charter schools is that they introduce a strong market element into public education. In this paper, we examine through the lens of a market model the evolution of the charter school sector in North Carolina between 1999 and 2012. We examine trends in the mix of students enrolled in charter schools, the racial imbalance of charter schools, patterns in student match quality by schools’ racial composition, and the distributions of test score performance gains compared to those in traditional public schools. In addition, we use student fixed effects models to examine plausibly causal measures of charter school effectiveness. Our findings indicate that charter schools in North Carolina are increasingly serving the interests of relatively able white students in racially imbalanced schools and that despite improvements in the charter school sector over time, charter schools are still no more effective on average than traditional public schools.
Journal Articles
Publisher: Journals Gateway
Education Finance and Policy (2017) 12 (2): 241–279.
Published: 01 April 2017
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We use rich longitudinally matched administrative data on students and teachers in North Carolina to examine the patterns of differential effectiveness by teachers’ years of experience. The paper contributes to the literature by focusing on middle school teachers and by extending the analysis to student outcomes beyond test scores. Once we control statistically for the quality of individual teachers using teacher fixed effects, we find large returns to experience for middle school teachers in the form both of higher test scores and improvements in student behavior, with the clearest behavioral effects emerging for reductions in student absenteeism. Moreover these returns extend well beyond the first few years of teaching. The paper contributes to policy debates by documenting that teachers can and do continue to learn on the job.
Journal Articles
Publisher: Journals Gateway
Education Finance and Policy (2013) 8 (4): 528–559.
Published: 01 October 2013
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We use North Carolina data to explore whether the quality of teachers in the lower elementary grades (K–2) falls short of teacher quality in the upper grades (3–5) and to examine the hypothesis that school accountability pressures contribute to such quality shortfalls. Our concern with the early grades arises from recent studies highlighting how children's experiences in those years have lasting effects on their later outcomes. Using two credentials-based measures of teacher quality, we document within-school quality shortfalls in the lower grades, and show that the shortfalls increased with the introduction of No Child Left Behind. Consistent with that pattern, we find that schools responded to accountability pressures by moving their weaker teachers down to the lower grades and stronger teachers up to the higher grades. These findings support the view that accountability pressure induces schools to pursue actions that work to the disadvantage of children in the lower grades.
Journal Articles
Publisher: Journals Gateway
Education Finance and Policy (2011) 6 (3): 399–438.
Published: 01 July 2011
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Research has consistently shown that teacher quality is distributed very unevenly among schools, to the clear disadvantage of minority students and those from low-income families. Using North Carolina data on the length of time individual teachers remain in their schools, we examine the potential for using salary differentials to overcome this pattern. We conclude that salary differentials are a far less effective tool for retaining teachers with strong preservice qualifications than for retaining other teachers in schools with high proportions of minority students. Consequently large salary differences would be needed to level the playing field when schools are segregated. This conclusion reflects our finding that teachers with stronger qualifications are both more responsive to the racial and socioeconomic mix of a school's students and less responsive to salary than are their less-qualified counterparts when making decisions about remaining in their current school, moving to another school or district, or leaving the teaching profession.
Journal Articles
Publisher: Journals Gateway
Education Finance and Policy (2010) 5 (3): 378–392.
Published: 01 July 2010
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The United States is an outlier with respect to its heavy emphasis on student test scores for the purposes of school accountability. Many other countries instead use school inspection systems that pay more attention to a school's internal processes and practices. This policy note focuses on the school inspection systems of New Zealand and the Netherlands, with the goal of drawing lessons for the United States. It addresses three main policy issues: For what should individual schools be held accountable? Should inspectors be more like coaches or more like judges? And how independent should they be of policy-making bodies?
Journal Articles
Publisher: Journals Gateway
Education Finance and Policy (2009) 4 (2): 115–149.
Published: 01 April 2009
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Using detailed data from North Carolina, we examine the frequency, incidence, and consequences of teacher absences in public schools as well as the impact of a policy designed to reduce absences. The incidence of teacher absences is regressive: when schools are ranked by the fraction of students receiving free or reduced price lunches, teachers in the lowest income quartile average almost one extra sick day per school year than teachers in the highest income quartile, and schools with persistently high rates of teacher absence were much more likely to serve low-income than high-income students. In regression models incorporating teacher fixed effects, absences are associated with lower student achievement in elementary grades. Finally, we present evidence that the demand for discretionary absences is price elastic. Our estimates suggest that a policy intervention that simultaneously raises teacher base salaries and broadens financial penalties for absences could both raise teachers' expected incomes and lower districts' expected costs.
Journal Articles
Publisher: Journals Gateway
Education Finance and Policy (2008) 3 (4): 402–423.
Published: 01 October 2008
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Within the context of the school finance literature, the concepts of equity and adequacy raise a number of complex definitional and pragmatic issues. The purpose of this article is to clarify those issues and to use those concepts to evaluate the recent policy proposal called weighted student funding (WSF). Though WSF contains some equity-enhancing elements, it could fall short of its equity goals because of imperfect weights. This approach also fails to take full account of the concentrations of challenging-to-educate students and their effects on the distribution of teachers. In addition, the WSF proposal can be faulted for paying no attention to adequacy, potentially stigmatizing individual students, and placing so much focus on individual schools. A more complete evaluation of WSF would require a broader institutional perspective that extends beyond the equity and adequacy considerations of this article.
Journal Articles
Publisher: Journals Gateway
Education Finance and Policy (2008) 3 (1): 149–150.
Published: 01 January 2008
Journal Articles
Publisher: Journals Gateway
Education Finance and Policy (2006) 1 (1): 50–90.
Published: 01 January 2006
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Using an individual panel data set to control for student fixed effects, we estimate the impact of charter schools on students in charter schools and in nearby traditional public schools. We find that students make considerably smaller achievement gains in charter schools than they would have in public schools. The large negative estimates of the effects of attending a charter school are neither substantially biased, nor substantially offset, by positive impacts of charter schools on traditional public schools. Finally, we find suggestive evidence that about 30 percent of the negative effect of charter schools is attributable to high rates of student turnover.