Publications by Year: Working Paper

Working Paper
Roland G. Fryer J, Levitt SD, List J, Sadoff S. Enhancing the Efficacy of Teacher Incentives through Framing: A Field Experiment. Working Paper.Abstract

In a field experiment, we provide financial incentives to teachers framed either as gains, received at the end of the year, or as losses, in which teachers receive upfront bonuses that must be paid back if their students do not improve sufficiently. Pooling two waves of the experiment, loss-framed incentives improve math achievement by an estimated 0.124 standard deviations (σ) with large effects in the first wave and no effects in the second wave. Effects for gain framed incentives are smaller and not statistically significant, approximately 0.051σ. We find suggestive evidence that effects on teacher value added persist post-treatment.

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Craig AC, Roland G. Fryer J. Complementary Bias: A Model of Two-Sided Statistical Discrimination. Working Paper. PDFAbstract
We introduce a model of two-sided statistical discrimination in which worker and firm beliefs are complementary. Firms try to infer whether workers have made investments required for them to be productive, and simultaneously, workers try to deduce whether firms have made investments necessary for them to thrive. When multiple equilibria exist, group differences are sustained by both sides of the interaction – workers and firms. Strategic complementarity complicates both empirical analysis designed to detect discrimination and policy meant to alleviate it. Affirmative action is much less effective than in traditional statistical discrimination models. More generally, we demonstrate the futility of policies that are designed to correct gender and racial disparities but do not address both sides of the coordination problem. We propose a two-sided version of “investment insurance” – a policy in which the government (after observing a noisy version of the employer’s signal) offers to hire any worker who it believes to be qualified and whom the employers does not offer a job – and show that it (weakly) dominates any alternative. The paper concludes by proposing a way to identify statistical discrimination by employers when beliefs are complements.
Roland G. Fryer J. Management and Student Achievement: Evidence from a Randomized Field Experiment. Working Paper.Abstract

This study examines the impact on student achievement of implementing management training for principals in traditional public schools in Houston, Texas, using a school-level randomized field experiment. Across two years, principals were provided 300 hours of training on lesson planning, data-driven instruction, and teacher observation and coaching. The findings show that offering management training to principals significantly increases student achievement in all subjects in year one and has an insignificant effect in year two. We argue that the results in year two are driven by principal turnover, coupled with the cumulative nature of the training. Schools with principals who are predicted to remain in their positions for both years of the experiment demonstrate large treatment effects in both years – particularly those with principals who are also predicted to implement the training with high fidelity – while those with principals that are predicted to leave have statistically insignificant effects in each year of treatment. 

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Dobbie W, Fryer RG. Charter Schools and Labor Market Outcomes. Working Paper.Abstract

We estimate the impact of charter schools on early-life labor market outcomes using administrative data from Texas. We find that, at the mean, charter schools have no impact on test scores and a negative impact on earnings. No Excuses charter schools increase test scores and four-year college enrollment, but have a small and statistically insignificant impact on earnings, while other types of charter schools decrease test scores, four-year college enrollment, and earnings. Moving to school-level estimates, we find that charter schools that decrease test scores
also tend to decrease earnings, while charter schools that increase test scores have no discernible impact on earnings. In contrast, high school graduation effects are predictive of earnings effects throughout the distribution of school quality. The paper concludes with a speculative discussion of what might explain our set of facts.

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Roland G. Fryer J, Levitt SD, List JA. Parental Incentives and Early Childhood Achievement: A Field Experiment in Chicago Heights. Working Paper.Abstract

This article describes a randomized field experiment in which parents were provided financial incentives to engage in behaviors designed to increase early childhood cognitive and executive function skills through a parent academy. Parents were rewarded for attendance at early childhood sessions, completing homework assignments with their children, and for their child’s demonstration of mastery on interim assessments. This intervention had large and statistically significant positive impacts on both cognitive and non-cognitive test scores of Hispanics and Whites, but no impact on Blacks. These differential outcomes across races are not attributable to differences in observable characteristics (e.g. family size, mother’s age, mother’s education) or to the intensity of engagement with the program. Children with above median (pre-treatment) non cognitive scores accrue the most benefits from treatment.

Fryer R, Devi T, Holden RT. Vertical versus Horizontal Incentives in Education: Evidence from Randomized Trials. Working Paper.Abstract

This paper describes randomized field experiments in eighty-four urban public schools in two cities designed to understand the impact of aligned incentives on student achievement. In Washington DC, incentives were “horizontal” – provided to one agent (students) for various inputs in the education production function (i.e. attendance, behavior, interim assessments,homework, and uniforms). In Houston, TX, incentives were “vertical” – provided to multiple agents (parents, teachers, and students) for a single input (math objectives). On outcomes for which we provided direct incentives, there were large and statistically significant effects from both treatments. Horizontal incentives led to increases in math and reading test scores. Vertical incentives increased math achievement, but resulted in decreased reading, science, and social studies test scores. We argue that the data is consistent with agents perceiving academic achievement in various subjects as substitutes, not complements, in education production.

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