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

机译：研发活动的相对效率：一项在DEA方法中考虑环境因素的跨国研究

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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.
机译：本文运用与数据包络分析（DEA）方法相关的生产框架来评估各国研发活动的相对效率。研发资本存量和人力被视为投入，而专利和学术出版物则被视为产出。近年来，已将三阶段方法应用于30个国家，其中包括使用DEA评估效率和使用Tobit回归来控制外部环境。结果表明，只有不到一半的国家在研发活动上完全有效，而超过三分之二的国家处于规模收益递增阶段。大多数国家在生产SCI和EI出版物方面比在产生专利方面具有更大的优势。

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