Graduation efficiency is of top concern for institutions of higher education throughout the world. Increasingly, accountability metrics have come under scrutiny as policymakers seek to ensure public resources are efficiently used. Traditionally, higher education policymakers in the USA and Europe have used graduation rate as an accountability…

Does student-teacher match quality exist? Prior work has documented large disparities in teachers' impacts across student types but has not distinguished between sorting and causal effects as the drivers of these disparities. I propose a disparate value-added model and derive a novel measure of teacher quality--revealed comparative advantage--that…