Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
This paper shows that teachers who are paid more stay longer in teaching, that teachers with high opportunity costs, as measured by test scores and subject specialties, stay in teaching less long than other teachers do, and that salaries influence duration less for teachers with high test scores than for teachers with lower scores. The research is based on a new longitudinal dataset providing information on the career histories of 13,890 North Carolina teachers. The empirical work uses a generalized least squares estimation technique that accommodates censored observations, time-varying covariates, and fixed effects.