Patents, Thickets and the Financing of Early-Stage Firms: Evidence from the Software Industry
"Legal changes in the patentability of software since the mid 1990s have resulted in a substantial increase in the number of patents on software inventions. We focus here on the impact of transactions costs associated with patent "thickets" on new entrants' interactions with the capital markets. Using data on the financing of entrants into 27 narrowly defined software markets, we show that start-up software companies operating in markets characterized by denser patent thickets saw their initial acquisition of VC funding delayed relative to firms in markets less affected by patents after the mid 1990s. The relationship between patent thickets and subsequent financing activity such as IPO or acquisition is more complex, but there is weak evidence that firms without patents became less likely to go public if they operated in a market characterized by patent thickets. Firms with patents are more likely to be funded or experience a liquidity event. However, the application for a patent appears to matter more than its grant." Copyright (c) 2009 Wiley Periodicals, Inc..
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.
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.
Volume (Year): 18 (2009)
Issue (Month): 3 (09)
|Contact details of provider:|| Web page: http://www.kellogg.northwestern.edu/research/journals/JEMS/|
|Order Information:||Web: http://www.blackwellpublishing.com/journal.asp?ref=1058-6407&site=1|
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.:
- Hall, Bronwyn H. & MacGarvie, Megan, 2010.
"The private value of software patents,"
Elsevier, vol. 39(7), pages 994-1009, September.
- Bronwyn H. Hall & Megan MacGarvie, 2006. "The Private Value of Software Patents," NBER Working Papers 12195, National Bureau of Economic Research, Inc.
- Iain M. Cockburn & Megan J. MacGarvie, 2011. "Entry and Patenting in the Software Industry," Management Science, INFORMS, vol. 57(5), pages 915-933, May.
- Iain M. Cockburn & Megan J. MacGarvie, 2006. "Entry and Patenting in the Software Industry," NBER Working Papers 12563, National Bureau of Economic Research, Inc.
- Carl Shapiro, 2001. "Navigating the Patent Thicket: Cross Licenses, Patent Pools, and Standard Setting," NBER Chapters,in: Innovation Policy and the Economy, Volume 1, pages 119-150 National Bureau of Economic Research, Inc.
- Shapiro, Carl, 2000. "Navigating the Patent Thicket: Cross Licenses, Patent Pools, and Standard-Setting," Competition Policy Center, Working Paper Series qt4hs5s9wk, Competition Policy Center, Institute for Business and Economic Research, UC Berkeley.
- Carl Shapiro, 2003. "Navigating the Patent Thicket: Cross Licenses, Patent Pools, and Standard-Setting," Law and Economics 0303005, EconWPA.
- Carl Shapiro, 2004. "Navigating the Patent Thicket: Cross Licenses, Patent Pools and Standard Setting," Levine's Working Paper Archive 122247000000000539, David K. Levine.
- Wagner, S. & Cockburn, I., 2010. "Patents and the survival of Internet-related IPOs," Research Policy, Elsevier, vol. 39(2), pages 214-228, March.
- Iain M. Cockburn & Stefan Wagner, 2007. "Patents and the Survival of Internet-related IPOs," NBER Working Papers 13146, National Bureau of Economic Research, Inc.
- James E. Bessen & Michael J. Meurer, 2006. "Patent Litigation with Endogenous Disputes," American Economic Review, American Economic Association, vol. 96(2), pages 77-81, May.
- James Bessen & Michael J. Meurer, 2005. "Patent Litigation with Endogenous Disputes," Working Papers 0502, Research on Innovation.
- Sakakibara, Mariko & Branstetter, Lee, 2001. "Do Stronger Patents Induce More Innovation? Evidence from the 1988 Japanese Patent Law Reforms," RAND Journal of Economics, The RAND Corporation, vol. 32(1), pages 77-100, Spring.
- James Bessen & Eric Maskin, 2009. "Sequential innovation, patents, and imitation," RAND Journal of Economics, RAND Corporation, vol. 40(4), pages 611-635.
- James Bessen & Eric Maskin, 2006. "Sequential Innovation, Patents, and Imitation," Economics Working Papers 0025, Institute for Advanced Study, School of Social Science.
- Samuel Kortum & Josh Lerner, 2000. "Assessing the Contribution of Venture Capital to Innovation," RAND Journal of Economics, The RAND Corporation, vol. 31(4), pages 674-692, Winter.
- Bronwyn H. Hall, 2005. "Exploring the Patent Explosion," The Journal of Technology Transfer, Springer, vol. 30(2_2), pages 35-48, 01.
- Bronwyn H. Hall, 2004. "Exploring the Patent Explosion," NBER Working Papers 10605, National Bureau of Economic Research, Inc.
- Bronwyn Hall, 2004. "Exploring the patent explosion," Working Papers wp291, Centre for Business Research, University of Cambridge.
- Ashish Arora & Andrea Fosfuri & Alfonso Gambardella, 2004. "Markets for Technology: The Economics of Innovation and Corporate Strategy," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262511819, July.
- Gompers, Paul A, 1995. " Optimal Investment, Monitoring, and the Staging of Venture Capital," Journal of Finance, American Finance Association, vol. 50(5), pages 1461-1489, December.
- Gort, Michael & Klepper, Steven, 1982. "Time Paths in the Diffusion of Product Innovations," Economic Journal, Royal Economic Society, vol. 92(367), pages 630-653, September.
- Ai, Chunrong & Norton, Edward C., 2003. "Interaction terms in logit and probit models," Economics Letters, Elsevier, vol. 80(1), pages 123-129, July. Full references (including those not matched with items on IDEAS)
When requesting a correction, please mention this item's handle: RePEc:bla:jemstr:v:18:y:2009:i:3:p:729-773. 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.