ADAMS, James D.; GRILICHES, Zvi - In: Annales d'Economie et de Statistique (1998) 49-50, pp. 127-162
This paper considers research performance of U.S. universities for eight science fields. At the aggregate level we find that research output follows a constant returns to scale process. However, for individual universities we find evidence of diminishing returns. We offer two explanations for...