Advanced Search
MyIDEAS: Login to save this paper or follow this series

Persistence of innovation, technological change and quality-adjusted patents in the US pharmaceutical industry

Contents:

Author Info

Abstract

This paper analyzes American pharmaceutical firms' persistence in innovating just before the wave of mergers and acquisitions that accompanied the "Biotech revolution". We evaluate the impact of past innovative activity on firms' innovation propensities using a non-linear GMM estimator for exponential models that allows for predetermined regressors and linear feedback. We find that innovative activity at the firm level depends strongly on the scope of past innovations. Breakthroughs in particular depend largely on past quality innovation made by firms, and this effect may likely deter further pioneering discoveries rather than strengthen incentives to invest on non cumulative R&D. The results also shed light on the importance of small firms in the dynamics of innovation in pharmaceutical industry, and suggest that large firms persist in using patents strategically to remain dominant.

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: ftp://mse.univ-paris1.fr/pub/mse/cahiers2006/Bla06029.pdf
Download Restriction: no

Bibliographic Info

Paper provided by Université Panthéon-Sorbonne (Paris 1) in its series Cahiers de la Maison des Sciences Economiques with number bla06029.

as in new window
Length: 38 pages
Date of creation: Jan 2006
Date of revision:
Handle: RePEc:mse:wpsorb:bla06029

Contact details of provider:
Postal: 106 - 112 boulevard de l'Hôpital, 75647 Paris cedex 13
Phone: 01 44 07 81 00
Fax: 01 44 07 81 09
Email:
Web page: http://mse.univ-paris1.fr/
More information through EDIRC

Related research

Keywords: Patent citations; pharmaceutical industry; persistence in innovation.;

Find related papers by JEL classification:

This paper has been announced in the following NEP Reports:

References

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
as in new window
  1. Wooldridge, Jeffrey M., 1997. "Multiplicative Panel Data Models Without the Strict Exogeneity Assumption," Econometric Theory, Cambridge University Press, vol. 13(05), pages 667-678, October.
  2. Wladimir Raymond & Pierre Mohnen & Franz Palm & Sybrand Schim van der Loeff, 2006. "Persistence of Innovation in Dutch Manufacturing: Is it Spurious?," CIRANO Working Papers 2006s-04, CIRANO.
  3. Scherer, F M, 1992. "Schumpeter and Plausible Capitalism," Journal of Economic Literature, American Economic Association, vol. 30(3), pages 1416-33, September.
  4. repec:cup:etheor:v:13:y:1997:i:5:p:667-78 is not listed on IDEAS
  5. Reinganum, Jennifer R., 1982. "Uncertain Innovation and the Persistence of Monopoly," Working Papers 431, California Institute of Technology, Division of the Humanities and Social Sciences.
  6. Mark Schankerman, 1998. "How Valuable is Patent Protection? Estimates by Technology Field," RAND Journal of Economics, The RAND Corporation, vol. 29(1), pages 77-107, Spring.
  7. Segerstrom, Paul S & Zolnierek, James M, 1999. "The R&D Incentives of Industry Leaders," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 40(3), pages 745-66, August.
  8. Sutton, John, 1996. "Technology and market structure," European Economic Review, Elsevier, vol. 40(3-5), pages 511-530, April.
Full references (including those not matched with items on IDEAS)

Citations

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

Cited by:
  1. Christian Le Bas & Nicolas Poussing, 2012. "Are complex innovators more persistent than single innovators ? An empirical analysis of innovation persistence drivers," Working Papers 1201, Groupe d'Analyse et de Théorie Economique (GATE), Centre national de la recherche scientifique (CNRS), Université Lyon 2, Ecole Normale Supérieure.
  2. LE BAS Christian & MOTHE Caroline & NGUYEN Thi Thuc Uyen, 2011. "Technological innovation persistence: Literature survey and exploration of the role of organizational innovation," CEPS/INSTEAD Working Paper Series 2011-54, CEPS/INSTEAD.

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:mse:wpsorb:bla06029. 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: (Lucie Label).

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.