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.

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.

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.

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.

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.