I am an Associate Professor (with tenure) in the Strategy unit at the Fuqua School of Business of Duke University, and a Research Associate at the National Bureau of Economic Research (NBER). My research is dedicated to advance the understanding of how firm organizational structure mediates, and is mediated by, firm strategy, and of how investments in science by corporations and by universities affect technical change. My research has been featured in top academic journals, such as Management Science, Strategic Management Journal, American Economic Review, Review of Economics and Statistics, Economic Journal, Research Policy and Journal of Law and Economics. I received his PhD from the London School of Economics, and completed post-doctorate work at the University of Oxford, Nuffield College. I have also been the recipient of the Kauffman foundation post-doctorate fellowship at the NBER. I earned MA and BA degrees in Economics from Tel-Aviv University. I have been an Associate Editor for Management Science from January 2016 and for Strategic Management Journal from July 2016.

Research interests: Science and innovation, business ecosystems, theory of the firm, organization design

Teaching: Corporate Strategy (MBA, EMBA), Emerging Markets Strategy (MBA, EMBA), Economics of Innovation (PhD)



  1. The changing structure of American innovation: Some cautionary remarks for economic growth (with Ashish Arora, Andrea Patacconi and JK Suh), published in Innovation Policy and the Economy handbook, National Bureau of Economic Research, June 2019. Media coverage: Marginal Revolution, Conversable Economist

  2. Do patents block follow-on innovation? (with Ashish Arora and Honggi Lee)

  3. Are ideas getting harder to find, or have firms just become too big? (with Ashish Arora, Wes Cohen and Honggi Lee), In-progress (working paper coming soon)

  4. Do universities substitute for corporate scientific research? (with Ashish Arora), In-progress (working paper coming soon)

  5. Science and the cost of knowledge transfer (with Ashish Arora and JK Suh)

  6. A theory of the U.S. innovation ecosystem: Evolution, diversity, and efficiency (with Ashish Arora and Andrea Patacconi), Forthcoming in Industrial and Corporate Change Special Issue in Honor of Nate Rosenberg

  7. Back of Basics: Why do firms invest in scientific research? (with Ashish Arora and Lia Sheer), Revise and Resubmit, American Economic Review. Data

  8. Reverse Citations and Localized Knowledge Spillovers (with Ashish Arora and Honggi Lee), Journal of Economic Geography, Volume 18, Issue 3, 1 May 2018, Pages 495–521, IMPULSES

  9. Papers to patents: The withdrawal of large US corporations from research is narrowing the scope of innovation (with Ashish Arora and Andrea Patacconi), Comment, Nature 552, S10, 7 December 2017. Additional analysis: A firm shift (with Ashish Arora and Andrea Patacconi), Nature 552, S10 (7 December 2017)

  10. The decline of science in corporate R&D (with Ashish Arora and Andrea Patacconi), Strategic Management Journal 39(1): 3-32, January 2018 (lead article). Main media coverage: Washington PostNew York Times, Fortune (December 10, 2015), Fortune (December 21, 2015), Vox, CBS radio (San Francisco), Science, The Observer, Brookings Institution, The Chronicle, Congressional briefing, Financial Times, The Atlantic. Data: Golden Goose platform. Special event presentations: “The Decline in Corporate Research: Should We Worry?” (Washington, March 31, 2017). Congressional Briefing (Washington, June 6, 2017), with Senator Chris Coons (D-DE), Co-chair, Senate Competitiveness Caucus. "The Decline of Science in Corporate R&D. Implications for policy, strategy and innovation," Academy of Management 2017 Annual Meeting. 2017 NBER Innovation Summer Institute panel: "Is Short-Termism Killing the American Innovation Engine?"

  11. Motivation and Sorting of Human Capital in Open Innovation (with Mark Schankerman), Strategic Management Journal 36: 795–820, June 2015 (lead article)

  12. Make, Buy, Organize: The Interplay Between R&D, External Knowledge, and Firm Structure (with Ashish Arora and Luis Rios), Strategic Management Journal 35: 317–337, March 2014

  13. Innovation and firm value: An investigation of the changing role of patents, 1985-2007 (with Andrea Patacconi), Research Policy 42(8): 1496-1510, September 2013

  14. Spreading the Word: Geography, Policy and Knowledge Spillovers (with Mark Schankerman), Review of Economics and Statistics 95(3): 884-903, July 2013

  15. Cumulative Innovation and Market Value: Evidence from Patent CitationsEconomic Journal 559(122): 265-285, March 2012. Media coverage: Washington Post, July 3, 2012; VOX, July 3, 2012

  16. University Knowledge Transfer: Private Ownership, Incentives, and Local Development Objectives (with Mark Schankerman), Journal of Law and Economics 52(1): 111-144, February 2009

  17. How does firm size mediate firms' ability to benefit from invention? Evidence from patents and scientific publications (with Andrea Patacconi), European Management Review 11(1): 21-45, Spring 2014

  18. Innovation in Business Groups (with Tomer Berkovitz), Management Science 56(3): 519-535, March 2010

  19. Intracompany governance and innovation (with Patrick Bolton and Tomer Berkovitz), 2009 NBER working paper (unpublished)


  1. Workers on tap? How labor flexibility fosters experimentation and business creation (with Victor Bennet and Andrea Patacconi), Forthcoming in Strategy Science

  2. The architecture of attention: Group structure and subsidiary autonomy (with Niron Hashai and Andrea Patacconi), Forthcoming in Strategic Management Journal

  3. Manager's Age and the Performance of Closely Held Firms (with Anastasiya Shmshur and Rebecca Zarutskie), Strategic Management Journal (40): 917-944, June 2019 

  4. Choosing between Growth and Glory (with Ronnie Chatterji and Brendan Daley), Forthcoming in Management Science

  5. Knowledge Sharing in Alliances and Alliance Portfolios (with Ashish Arora and Andrea Patacconi), Minor revision, Management Science

  6. Eponymous Entrepreneurs (with Aaron Chatterji and Brendan Daly), American Economic Review 107(6):1638-55, June 2017, watch video. Main media coverage: The Economist, LSE Business Review, EIX

  7. Towards a legal theory of the firm: The effects of limited liability laws on asset partitioning, decentralization and organizational growth (with Honggi Lee and Andrea Patacconi), NBER Working Paper 24720. Media coverage: Harvard Law School Forum on Corporate Governance and Financial Regulation: Enterprise Liability and the Organization of Production Across Countries. Revise and Resubmit, Strategic Management Journal

  8. Married to the firm? A large scale investigation of the social context of ownership (with Andrea Patacconi and Rebecca Zarutskie), Strategic Management Journal 37(13): 2611-2638, November 2015

  9. Market Frictions and the the Competitive Advantage of Internal Labor Markets (with Ulya Tsolmon), Strategic Management Journal 37: 1280–1303, July 2016

  10. Capital markets and firm organization: How financial development shapes European corporate groups (with Tomer Berkovitz and Luis Rios), Management Science 59: 1326-1343, June 2013

  11. Managerial Redeployment, Ownership Structure, and Family Ties (with Andrea Patacconi and Ulya Tsolmon), Revise and Resubmit, Strategic Management Journal


  1. Patent 10,007,882 (June 26, 2018; USPTO): System, Method and Apparatus to Determine Associations Among Digital Documents