Measuring the change in R&D efficiency of the Japanese pharmaceutical industry |
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| Authors: | Akihiro Hashimoto Shoko Haneda |
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| Institution: | a Graduate School of Systems and Information Engineering, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
b Faculty of Business Administration, Komazawa University, Komazawa, Setagaya, Tokyo 154-8525, Japan |
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| Abstract: | 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. |
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| Keywords: | R& D efficiency change Data envelopment analysis Malmquist index Japanese pharmaceutical industry |
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