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Research on cost-benefit analysis of additionality of public R&D investment: Japan's photovoltaic power R&D projects

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  • Kazuaki Kohmoto
  • Jun-ichi Yoshida
  • Miharu Kishioka

Abstract

This research, taking Japan's photovoltaic power R&D projects as the subject of analysis, is designed to propose a cost-benefit analysis method in which additionality of public R&D investment is figured out with an econometric approach. The method we applied consists of following steps. First, a relational equation between public/private R&D investment and the price of photovoltaic power system was obtained. Based on the equation, the price of a photovoltaic power system in the absence of public R&D investment was estimated. Then, using a demand function, separately obtained, an additional consumer surplus induced by public R&D investment was calculated. Lastly, cost-benefit analysis was made on the public R&D investment amount and the additional consumer surplus. From our analysis results, we concluded that public R&D investment was yielding massive economic benefits in the long run. Copyright , Beech Tree Publishing.

Suggested Citation

  • Kazuaki Kohmoto & Jun-ichi Yoshida & Miharu Kishioka, 2009. "Research on cost-benefit analysis of additionality of public R&D investment: Japan's photovoltaic power R&D projects," Research Evaluation, Oxford University Press, vol. 18(5), pages 397-404, December.
    • Handle: RePEc:oup:rseval:v:18:y:2009:i:5:p:397-404
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    File URL: http://hdl.handle.net/10.3152/095820209X480670
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    Cited by:

    1. Choi, Gobong & Huh, Sung-Yoon & Heo, Eunnyeong & Lee, Chul-Yong, 2018. "Prices versus quantities: Comparing economic efficiency of feed-in tariff and renewable portfolio standard in promoting renewable electricity generation," Energy Policy, Elsevier, vol. 113(C), pages 239-248.

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