Relative efficiency of R&D activities: A cross-country study accounting for environmental factors in the DEA approach

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• 作者：Eric C. Wang ; Weichiao Huang
• 关键词：R& ; D ; Efficiency ; Data envelopment analysis ; Tobit regression
• 刊名：Research Policy
• 出版年：2007
• 期刊代码：73_00487333
• 类别：bus
• 出版时间：March 2007
• 卷：36
• 期：2
• 页码：260-273
• 文件大小：231 K

摘要

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 EI publications than in generating patents.