IDEAS home Printed from https://ideas.repec.org/a/ids/ijlica/v7y2010i3-4p284-294.html
   My bibliography  Save this article

Comparative study on innovation resource in pharmaceutical fields: an entropy measure over patent data in China

Author

Listed:
  • Xiang-dong Chen
  • Li-li Cao

Abstract

It is widely believed in international literature that R&D and related innovation movement in pharmaceutical field is different from activities in other manufacture areas. This paper deals with the nature of innovation activities in China's pharmaceutical field, focusing on innovation activities in its size and technical scope, by investigating patent data in China between 1985 and 2005. Entropy measure is introduced in this paper to reveal degree of concentration and diversification. With data processing result based on entropy measure, the paper provides a descriptive chart in two dimensions: namely, degree of size and degree of technical scope. Patenting activities from foreign firms and local firms are compared in this study, and development tendency of technology resources in local companies in China is also provided comparatively. Implications from this research can be used as reference to policy makers and business companies in China.

Suggested Citation

  • Xiang-dong Chen & Li-li Cao, 2010. "Comparative study on innovation resource in pharmaceutical fields: an entropy measure over patent data in China," International Journal of Learning and Intellectual Capital, Inderscience Enterprises Ltd, vol. 7(3/4), pages 284-294.
    • Handle: RePEc:ids:ijlica:v:7:y:2010:i:3/4:p:284-294
    as

    Download full text from publisher

    File URL: http://www.inderscience.com/link.php?id=34368
    Download Restriction: Access to full text is restricted to subscribers.
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:ids:ijlica:v:7:y:2010:i:3/4:p:284-294. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sarah Parker (email available below). General contact details of provider: http://www.inderscience.com/browse/index.php?journalID=86 .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.