How do proficiency-based accountability systems affect inequality in academic achievement? This article reconciles mixed findings in the literature by demonstrating that three factors jointly determine accountability's impact. First, by analyzing student-level data from a large urban school district, we find that when educators face accountability…

Few educational problems have received more attention than has the failure to ensure that the nation's classrooms are staffed by qualified teachers. Many states have pushed for more-rigorous preservice teacher education, training, and certification standards. Moreover, a host of recruitment initiatives have attempted to increase the supply of…