This study develops, validates, and applies a typology of teachers using labor market data. We construct our typology by applying a correlated topic model to 17,000 personal statements teachers submitted as part of their applications to open positions in Wisconsin public schools. We identify seven types of teachers active on the labor market:…

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…