Transitions to a new principal are common, especially within urban public schools, and potentially highly disruptive to a school's culture and operations. We use longitudinal data from New York City to investigate if the effect of principal transitions differs by whether the incoming principal was hired externally or promoted from within the…

Growing numbers of students are educated in charter schools, including students with disabilities (SWD). Prior research suggests that charter schools educate a smaller percentage of SWD than traditional public schools, leading to a special education gap between sectors. We used data from a large urban district to examine how choice, mobility, and…

We study personnel flexibility in charter schools by exploring how teacher retention varies with teacher and school quality in Massachusetts. Charters are more likely to lose their highest and lowest value-added teachers. Low performers tend to exit public education, while high performers tend to switch to traditional public schools. To…

When the number of charter schools in a given area increases, are students who remain in traditional public schools worse off? This is a claim often made by opponents of school choice; gains made by students in charter schools, they say, come at the expense of students left behind. There is scant evidence to support this view in the existing…

Charter schools in the U.S. experience higher rates of student and teacher turnover than traditional public schools (TPS). Less is known, however, about principal turnover, despite the important role that a principal plays in a school's success. This paper evaluates principal turnover in New York City's charters and TPS during 2008-18. It finds…

Many argue that public school systems should stop linking teachers' salaries so closely to their years of experience. However, the effect of deferred retirement compensation on the premium paid to experienced teachers has, to date, been underappreciated. To shed more light on this issue, we calculate the total compensation earned by teachers in…

Urban public school districts in the U.S. vary in quality. Educational policies, distribution of resources, and the challenges that students bring to the classroom differ substantially across localities. Little surprise, then, that academic outcomes--such as high school graduation rates and average school performance on standardized…

Though charter schools are revolutionizing U.S. urban education, critics often assert that charters post higher test scores than surrounding traditional public schools because they systematically remove their most difficult-to-educate students. To substantiate this claim, charter critics note that smaller percentages of charter students are…

Critics of charter schools in New York City, America's largest school district, often allege that charters score better on standardized tests, on average, than traditional public schools because charters "cream-skim" (i.e., attract) the brightest, most motivated, students. Yet this accusation neglects the fact that not all traditional…

A widely cited report by the federal Government Accountability Office found that charter schools enroll a significantly smaller percentage of students with disabilities than do traditional public schools. However, thus far no hard evidence exists to definitively explain or quantify the disparity between special education enrollment rates in…

We analyze patterns of teacher attrition from charter schools and schools in the traditional public sector. Using rich data on students, teachers, and schools in Florida, we estimate teacher effectiveness based on repeated test scores reported at the student level for each teacher over time. Among all teachers, those in charter schools appear more…

The significant growth of charter schools in the United States has brought praise for the excellent results achieved by some schools as well as criticism that charter schools may not be serving the most disadvantaged students. Critics of charter schools, in New York City and elsewhere, commonly assert that charters' (often) strong academic…

This study uses New York City Department of Education data to analyze the factors driving the gap in special education enrollment between charter and traditional public schools. Among the findings: (1) Students with disabilities are less likely to apply to charter schools in kindergarten than are regular enrollment students. This is the primary…

The significant growth of charter schools in the United States has brought both praise for the excellent results achieved by some schools and criticism that charter schools may not be serving the most disadvantaged students. In New York City and elsewhere, a significantly smaller proportion of students enrolled in charter schools are classified as…

Most of us have had at least one amazing teacher who has inspired, influenced, or encouraged us to do better, aim higher, or just be more confident. However, most of us have also had at least one teacher who has not met our expectations. In "Teachers Matter", education researcher Marcus A. Winters, a senior fellow at the Manhattan Institute,…