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Measuring The Change In R&d Efficiency Of The Japanese Pharmaceutical Industry

机译:衡量日本制药业研发效率的变化

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This paper presents a data envelopment analysis (DEA)/Malmquist index methodology for measuring the change in R&D efficiency at both firm and industry levels. Letting each of ten firms in each year be a separate decision-making unit, and employing one input and three outputs in a DEA case of R&D activity input-output lag, we measure "total factor R&D efficiency" change of Japanese pharmaceutical firms for decade 1983-1992 as defined by the period of R&D input. Decomposing Malmquist index into catch-up and frontier shift components and using "cumulative indices" proposed in this study, we evaluate R&D efficiency change for each firm and empirically show that R&D efficiency of Japanese pharmaceutical industry has almost monotonically gotten worse throughout the study decade.
机译:本文提出了一种数据包络分析(DEA)/马尔姆奎斯特指数方法,用于测量公司和行业水平上研发效率的变化。让每年的十家公司中的每一个成为一个单独的决策单位,并在DEA研发活动的投入-产出滞后的DEA案例中采用一个投入和三个产出,我们测量了日本制药公司十年来的“总要素研发效率”变化按照研发投入的时间段定义为1983-1992年。将Malmquist指数分解为追赶和前沿转移成分,并使用本研究中提出的“累积指数”,我们评估了每个公司的R&D效率变化,并凭经验表明,在整个研究十年中,日本制药业的R&D效率几乎单调恶化。

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