Chapter 19 Teacher Supply This chapter presents an overview of economic models of teacher supply and explains the modeling implications for both cross section and time series econometric modeling. Specifically the literature on the determinants of teacher recruitment turnover mobility and re entry into the profession are reviewed. It reviews the empirical evidence from the US the UK on the labor supply of teachers and assesses the variation in teachers real pay across in aggregate across 35 countries in the world. It also provides suggests for fruitful areas of future research.