Experienced teachers are, on average, more effective at raising student performance than those in their early years of teaching. This gives rise to the concern that too many teachers leave the profession after less than a full career and that too many leave troubled inner-city schools for suburban ones. Until now, the roots of these problems have…

Research reveals that teachers' working conditions are more likely to determine whether they stay at a school--or even in the profession--than are their salaries. Results suggest that policymakers ought to consider selective pay increases, preferably keyed to quality, for work in inner-city schools, together with efforts to improve the working…