Advanced Search
MyIDEAS: Login

Innovationsanreize in einem strukturellen Oligopolmodel

Contents:

Author Info

  • Harhoff, Dietmar

Abstract

In diesem Beitrag wird ein Oligopolmodell der Innovationsaktivität entwickelt und mit Daten aus dem Mannheimer Innovationspanel geschätzt. Das Modell erlaubt es, bei der empirischen Umsetzung auf die Verwendung von Marktanteilsdaten und Nachfrageelastizitäten zu verzichten, die typischerweise nur annähernd ermittelt werden können und eine wichtige Quelle von Fehlspezifikationen darstellen. Die Regressionsergebnisse zeigen auf, daß der Zugang zu Informationsquellen eine wichtige Determinante der FuE-Aktivitäten darstellt. Endogene Schutzmechanismen wie Zeitvorsprünge, Komplexität des Produktdesigns, etc. bestimmen insbesondere den Umfang der gesamten Innovationsaufwendungen, aber weniger den der FuEAufwendungen. Sofern rechtliche Schutzmechanismen (z.B. Patente) effektiv eingesetzt werden können, wirken sie sich positiv auf die FuE-Tätigkeit aus. Firmenspezifische Finanzierungsbedingungen beeinflussen ebenfalls die Innovationsaktivität des Unternehmens. Spezifikationstests, die sich aus dem theoretischen Modell ableiten lassen, führen nicht zu einer Zurückweisung der Validität des Modells. -- The paper develops an oligopoly model of innovation and applies it to data from the Mannheim Innovation Panel. The model circumvents the need for market share and price elasticity data which typically can only be determined with measurement error and are therefore a major source of misspecification. The regression results suggest that access to sources of information is an important determinant for the firm's R&D activity. Endogenous protection mechanisms such as lead time, design complexity, etc. are important determinants of overall innovation expenditures, but not for R&D specifically. If legal protection mechanisms (such as patents) are effective, they exert a positive effect on R&D spending. Firm-specific financing conditions also affect the innovation activity of the firm. Specification tests derived from the theoretical model do not lead to a rejection of the validity of the empirical model.

Download Info

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://econstor.eu/bitstream/10419/24241/1/dp1697.pdf
Download Restriction: no

Bibliographic Info

Paper provided by ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research in its series ZEW Discussion Papers with number 97-16.

as in new window
Length:
Date of creation: 1997
Date of revision:
Handle: RePEc:zbw:zewdip:5121

Contact details of provider:
Postal: L 7,1; D - 68161 Mannheim
Phone: +49/621/1235-01
Fax: +49/621/1235-224
Email:
Web page: http://www.zew.de/
More information through EDIRC

Related research

Keywords:

Find related papers by JEL classification:

References

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

Citations

Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
as in new window

Cited by:
  1. Kaiser, Ulrich, 2001. "A simple game-theoretical framework for studying R&D expenditures and R&D cooperation," ZEW Discussion Papers 01-22, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
  2. Dietmar Harhoff, 1998. "Vertical Organization, Technology Flows and R&D Incentives: An Exploratory Analysis," CIG Working Papers FS IV 98-02, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
  3. Gottschalk, Sandra & Janz, Norbert, 2001. "Innovation dynamics and endogenous market structure: econometric results from aggregated survey data," ZEW Discussion Papers 01-39, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
  4. Najib Harabi, 2002. "The Impact of Vertical R&D Cooperation on Firm Innovation: An Empirical Investigation," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 11(2), pages 93-108.

Lists

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

Statistics

Access and download statistics

Corrections

When requesting a correction, please mention this item's handle: RePEc:zbw:zewdip:5121. 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: (ZBW - German National Library of Economics).

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.