規制緩和によるエネルギー産業の研究開発構造の変化 : マルコフ過程を用いた動学的解析による可視化  [in Japanese] Transition of R & D Structures in the Energy Sector Firms by the Deregulation : Visualization by dynamic analysis with the Markov process  [in Japanese]

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Abstract

マーケットルールの大幅な変更となる規制緩和は,企業の研究開発活動に影響を及ぼすと推察されるが,その関係について述べた研究は少ない。本稿では,エネルギー分野を取り上げ,規制緩和が電力・ガス企業の研究開発活動に与えた影響を分析する。企業の研究開発活動の構造変化は研究開発ルーティーンの変化として定式化され,研究開発活動がマルコフ過程に基づくとすれば,ルーティーンは推移確率行列で定量化され,その変化は極限確率分布の変化で可視化することが可能である。そこで研究開発活動の代替変数と見られる研究開発費と出願特許数について,規制緩和前後および電力会社とガス会社に分類した上で,極限確率分布を用いてそのルーティーン変化の比較分析を行った。その結果,規制緩和後は電力,ガス共に研究開発費に減少傾向が見られたが,特許についてはガスの方が減退傾向が顕著であることが示された。また特許のIPC分析により,電力会社は規制緩和後も技術の多様化を図る一方,ガス会社は集約傾向にあることが分かった。これらの観測結果から,電力とガスの研究開発ルーティーンに規制緩和の影響が異なって表れていることを明らかにした。

It is supposed that large deregulation to be changed of a market rule has an influence on R & D activity of a company, but there are few studies that described the relations. In this research, concerning with energy sector firms, influences of the deregulation on the R & D activities of the electricity/gas companies will be analyzed. The structure change of the R & D activity is formulated by the "routine" of the company. If the R & D activity is based on the Markov process, the routine of the company is quantified by a transition probability matrix, and the change of the routine can be visualized by a limit probability distribution. The change of the R & D routine is compared between before and after the deregulation, also between the electricity and gas companies, with using the method of the Markov process applied to the R & D expenses and the patent number which seemed to be a substitute variable of the R & D activities in those companies. The analysis said that, after the deregulation, although a tendency to decrease was seen in the R & D expenses in both the electricity and gas companies, a decline tendency in the gas companies was more remarkable than the electricity companies concerning about the patent number. From analysis with the patent IPC, the electricity companies could be said to have the strategy of diversification with their technologies, on the other hand, the gas companies made their technologies intensive. Those results show the influence of deregulation was different between the R & D routine of the electricity and gas companies.

Journal

  • The Journal of Science Policy and Research Management

    The Journal of Science Policy and Research Management 23(4), 383-392, 2009

    Japan Society for Research Policy and Innovation Management

References:  10

Codes

  • NII Article ID (NAID)
    110007227590
  • NII NACSIS-CAT ID (NCID)
    AN1030142X
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    0914-7020
  • NDL Article ID
    10323722
  • NDL Source Classification
    ZM1(科学技術--科学技術一般)
  • NDL Call No.
    Z14-1368
  • Data Source
    CJP  NDL  NII-ELS  J-STAGE 
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