Teachers in Puerto Rico are more than just educators--they serve as mentors and guides and play a significant role in shaping their students' lives as they lead them towards transformative changes. As teachers consider transitioning from their jobs to other objectives outside the academic field, they must prioritize their students' best interests.…

State-specific licensing policies and pension plans create mobility costs for educators who cross state lines. We empirically test whether these costs affect production in schools--a hypothesis that follows directly from economic theory on labor frictions--using geo-coded data from the lower-48 states. We find that achievement is lower in…