This document discusses research on the internal efficiency and external productivity of school systems. It provides an overview of the social, cultural, and economic subsystems that influence why faculty members remain in a particular school or school system. It then lists factors belonging to each subsystem and provides a framework for evaluating a school system's resources, including human resources, organizational structure, organizational climate, and other criteria. The document aims to guide research on the services offered by an educational program and how students avail of these services based on the program's inputs, processes, and goals.