Accomplished California Teachers:

Approximately one-third of all new teachers in the United States leave the profession within five years, and veteran teachers are leaving at ever higher rates. Teacher attrition, which has grown by 50 percent in the past 15 years, costs the nation roughly $7 billion a year for recruiting, hiring, and inducting new teachers. With this revolving door of teachers and the resulting hemorrhage of resources, schools suffer from instability and students lose out on the opportunity to learn from high-quality teachers.
Among the factors behind this high turnover are outdated teacher compensation systems and narrow career options for professional growth, according to a new report by Accomplished California Teachers (ACT), a teacher-leadership network based at Stanford.