NBER Working Papers by Marco Ceccagnoli

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Working Papers

April 2015Assets with "Warts": How Reliable is the Market for Technology?
with Vincenzo Palermo, Matthew J. Higgins: w21103
Existing research has focused on why and when firms may choose to access the external technology market. Surprisingly, however, less is known about the reliability of the patents attached to these external technologies in the face of litigation. “Weak” external patents expose a firm to the potential loss of downstream revenues. To address this question we construct a novel dataset of patent litigation in the pharmaceutical industry. We exploit a change in U.S. patent law as a natural experiment to test whether external patents are more reliable than those developed internally. We find that acquired patents are more likely to fall during litigation; they are less reliable then internal technologies. Losses lead to an average reduction in market capitalization of $450 million. Overall, our r...
August 2013Patent Commons, Thickets, and Open Source Software Entry by Start-Up Firms
with Wen Wen, Chris Forman: w19394
We examine whether the introduction of a patent commons, a special type of royalty free patent pool available to the open source software (OSS) community influences new OSS product entry by start-up software firms. In particular, we analyze the impact of The Commons--established by the Open Source Development Labs and IBM in 2005. We find that increases in the size of The Commons related to a software market increase the rate of entry in the market by start-ups using a new product based on an OSS license. The marginal impact of The Commons on OSS entry is increasing in the cumulativeness of innovation in the market and the extent to which patent ownership in the market is concentrated.
February 2013Behind the Scenes: Sources of Complementarity in R&D
with Matthew J. Higgins, Vincenzo Palermo: w18795
Even though management consultants increasingly recommend that in-house research be outsourced, little is known about the conditions favoring substitution or complementarity between internal R&D and external technology acquisition. In this paper, we attempt to provide a deeper understanding of the firm-level drivers of complementarity between these two types of investments through the structural estimation of a flexible innovation production function, such as the translog. Our empirical analysis is based on a unique panel dataset on the R&D and in-licensing expenditures of 94 global pharmaceutical firms active in drug development between 1997 and 2005. Our results suggest that internal R&D and in-licensing in the pharmaceutical industry were neither complements nor substitutes during the s...

Published: Marco Ceccagnoli & Matthew J. Higgins & Vincenzo Palermo, 2014. "Behind the Scenes: Sources of Complementarity in R&D," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 23(1), pages 125-148, 03. citation courtesy of

January 2003R&D and the Patent Premium
with Ashish Arora, Wesley M. Cohen: w9431
We analyze the effect of patenting on R&D with a model linking a firm's R&D effort with its decision to patent, recognizing that R&D and patenting affect one another and are both driven by many of the same factors. Using survey data for the U.S. manufacturing sector, we estimate the increment to the value of an innovation realized by patenting it, and then analyze the effect on R&D of changing that premium. Although patent protection is found to provide a positive premium on average in only a few industries, our results also imply that it stimulates R&D across almost all manufacturing industries, with the magnitude of that effect varying substantially.

Published: Arora, Ashish, Marco Ceccagnoli, and Wesley M. Cohen. "R&D and the Patent Premium", International Journal of Industrial Organization, Volume 26, Issue 5, September 2008, Pages 1153-1179 citation courtesy of

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