Research Productivity in a System of Universities
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 these differing results. First, data errors are more important at the individual level. Second, research spillovers exist between universities and fields that are captured only at the aggregate level.
Year of publication: |
1998
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Authors: | ADAMS, James D. ; GRILICHES, Zvi |
Published in: |
Annales d'Economie et de Statistique. - École Nationale de la Statistique et de l'Admnistration Économique (ENSAE). - 1998, 49-50, p. 127-162
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Publisher: |
École Nationale de la Statistique et de l'Admnistration Économique (ENSAE) |
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