IDEAS home Printed from https://ideas.repec.org/
MyIDEAS: Login to save this article or follow this journal

Patent Quality and Research Productivity: Measuring Innovation with Multiple Indicators

  • Jean O. Lanjouw
  • Mark Schankerman
Registered author(s):

    We analyse the determinants of the decline in research productivity using panel data on manufacturing firms in the US for the period 1980-93. We focus on three factors: the level of demand, the quality of patents and technological exhaustion. We develop an index of patent 'quality' using detailed patent information and show that using multiple indicators substantially reduces the measured variance in quality. Research productivity at the firm level is inversely related to patent quality and the level of demand, as predicted by theory and patent quality is positively associated with the stock market value of firms. Copyright 2004 Royal Economic Society.

    If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

    File URL: http://www.blackwell-synergy.com/servlet/useragent?func=synergy&synergyAction=showTOC&journalCode=ecoj&volume=114&issue=495&year=2004&part=null
    File Function: link to full text
    Download Restriction: Access to full text is restricted to subscribers.

    As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.

    Article provided by Royal Economic Society in its journal The Economic Journal.

    Volume (Year): 114 (2004)
    Issue (Month): 495 (04)
    Pages: 441-465

    as
    in new window

    Handle: RePEc:ecj:econjl:v:114:y:2004:i:495:p:441-465
    Contact details of provider: Postal: Office of the Secretary-General, School of Economics and Finance, University of St. Andrews, St. Andrews, Fife, KY16 9AL, UK
    Phone: +44 1334 462479
    Web page: http://www.res.org.uk/Email:


    More information through EDIRC

    Order Information: Web: http://www.blackwellpublishers.co.uk/asp/journal.asp?ref=0013-0133

    No references listed on IDEAS
    You can help add them by filling out this form.

    This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

    When requesting a correction, please mention this item's handle: RePEc:ecj:econjl:v:114:y:2004:i:495:p:441-465. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Wiley-Blackwell Digital Licensing)

    or (Christopher F. Baum)

    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.

    If references are entirely missing, you can add them using this form.

    If the full references list an item that is present in RePEc, but the system did not link to it, you can help with 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 profile, as there may be some citations waiting for confirmation.

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

    This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.