期刊
RESEARCH POLICY
卷 36, 期 2, 页码 260-273出版社
ELSEVIER
DOI: 10.1016/j.respol.2006.11.004
关键词
R&D; efficiency; data envelopment analysis; tobit regression
类别
This paper applies the production framework associated with the data envelopment analysis (DEA) method to evaluate the relative efficiency of R&D activities across countries. R&D capital stocks and manpower are treated as inputs while patents and academic publications are considered as outputs. A three-stage approach, which involves using DEA for evaluating efficiency and using Tobit regressions for controlling the external environment, is applied to 30 countries in recent years. The results show that less than one-half of the countries are fully efficient in R&D activities and that more than two-thirds are at the stage of increasing returns to scale. Most countries have a more significant advantage in producing SCI cum El publications than in generating patents. (c) 2006 Elsevier B.V. All rights reserved.
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