In the era of No Child Left Behind, principals are increasingly held accountable for student performance. But are teacher labor agreements giving them enough flexibility to manage effectively? This study answers this question and others. It examines how much flexibility school leaders enjoy on key dimensions of management in America's fifty…

Four decades after collective bargaining came to public education, school boards and the superintendents they hire still routinely blame teacher unions for causing massive inefficiencies, stifling innovation, and preventing change designed to promote student learning. "Our hands are tied," school boards commonly complain when school…