Student peer effects are well documented; however, we know far less about peer effects among teachers. We hypothesize that a relatively effective teacher can positively affect the performance of his or her peers, whereas a relatively ineffective teacher may negatively affect the performance of other teachers with whom he or she works closely.…

In this invited response to Moe and Anzia (2014), we describe both the points of convergence and divergence between our prior research (2007a, 2007b) and that of Moe (2005) and Moe and Anzia (2014). We also respond to Moe and Anzia's critique of our published work. Moe and Anzia's study helps to refine the policy discussion around seniority…

In this article, the authors Sarah A. Anzia and Terry M. Moe, offer a retort to William S. Koski and Elieen L. Horng's argument that their study of seniority-based transfer rules is narrow and that its findings only apply under limited circumstances. The Koski-Horng's study, by contrast, takes a broad frame--so broad that, as detailed in…

Collective bargaining is common in American public education, but its consequences are poorly understood. We focus here on key contractual provisions--seniority-based transfer rights--that affect teacher assignments, and we show that these transfer rights operate to burden disadvantaged schools with higher percentages of inexperienced teachers. We…

For at least two decades, studies have demonstrated that the least experienced and credentialed teachers are concentrated in poor, minority, and low-performing schools. Some blame provisions in collective bargaining agreements (CBAs) between teachers unions and school districts that favor senior teachers. Seniority preference rules, they say,…

Teach For America (TFA) recruits high-achieving college graduates to teach for 2 years in the nation's low-income schools. This study is the first to examine these teachers' retention nationwide, asking whether, when, and why they voluntarily transfer from their low-income placement schools or leave teaching altogether. Based on a survey of three…