Exploring the Sources of Firm-level Scale Economies in R&D: Complementary assets, internal and external knowledge inflows, and inventor team size
AbstractThis paper explores the sources of firm-level scale economies in R&D, based on unique project-level data from a new large-scale survey of Japanese inventors, matched with firm-level data. We focus on four sources: complementary assets, internal and external knowledge inflows, and inventor team size. Major findings include: (1) a larger firm tends to generate more patents from a research project but not more valuable patents, controlling for the objectives and the R&D investment (inventive efforts) for the project; (2) the sales of a firm rather than its R&D (or patent stocks) significantly affects the number of patents from the project, suggesting that the main source of such scale economy is not internal knowledge inflow but "appropriation advantage" of a large firm; (3) an inventor in a large firm often gains important knowledge for the project from internal knowledge inflow as well as from scientific literature. However, the performance of R&D-for which internal knowledge is important-tends to be low; and (4) the size of inventor teams increases with firm size and technological diversity. A larger team size is significantly associated with higher patent value and, as such, the size of the inventor team is one source of firm-level scale economies.
Download InfoIf 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.
Bibliographic InfoPaper provided by Research Institute of Economy, Trade and Industry (RIETI) in its series Discussion papers with number 11038.
Length: 41 pages
Date of creation: Apr 2011
Date of revision:
Contact details of provider:
Postal: 11th floor, Annex, Ministry of Economy, Trade and Industry (METI) 1-3-1, Kasumigaseki Chiyoda-ku, Tokyo, 100-8901
Web page: http://www.rieti.go.jp/
More information through EDIRC
This paper has been announced in the following NEP Reports:
- NEP-ALL-2011-04-23 (All new papers)
- NEP-INO-2011-04-23 (Innovation)
- NEP-IPR-2011-04-23 (Intellectual Property Rights)
- NEP-KNM-2011-04-23 (Knowledge Management & Knowledge Economy)
- NEP-PPM-2011-04-23 (Project, Program & Portfolio Management)
- NEP-SBM-2011-04-23 (Small Business Management)
- NEP-TID-2011-04-23 (Technology & Industrial Dynamics)
You can help add them by filling out this form.
CitEc Project, subscribe to its RSS feed for this item.
- Dang, Jianwei & Motohashi, Kazuyuki, 2012. "Patent value and liquidity: evidence from patent-collateralized loans in China," MPRA Paper 49547, University Library of Munich, Germany.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (NUKATANI Sorahiko).
If references are entirely missing, you can add them using this form.