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Breadth of external knowledge sourcing and product innovation: The moderating role of strategic human resource practices

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  • Ardito, Lorenzo
  • Messeni Petruzzelli, Antonio

Abstract

Prior research has argued that external knowledge sourcing can be supported by effective strategic human resource (HR) practices. However, whether and how the adoption of new organizational mechanisms in group settings influences the relationship between external search strategies and innovation performance represents an unanswered question. Therefore, the present paper aims to explore the relationship between the breadth of external knowledge sourcing (i.e., external search breadth) and product innovation by unveiling the moderating effects of strategic HR practices, as represented by the implementation of heterogeneous work groups and brainstorming sessions. On the basis of data from the Italian Innovation Survey, our results reveal that external search breadth is curvilinearly (inverted U) related to product innovation, and its negative effects occur later in the presence of heterogeneous work groups and brainstorming sessions.

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  • Ardito, Lorenzo & Messeni Petruzzelli, Antonio, 2017. "Breadth of external knowledge sourcing and product innovation: The moderating role of strategic human resource practices," European Management Journal, Elsevier, vol. 35(2), pages 261-272.
  • Handle: RePEc:eee:eurman:v:35:y:2017:i:2:p:261-272
    DOI: 10.1016/j.emj.2017.01.005
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    as
    1. Mairesse, Jacques & Mohnen, Pierre, 2010. "Using Innovation Surveys for Econometric Analysis," Handbook of the Economics of Innovation, in: Bronwyn H. Hall & Nathan Rosenberg (ed.), Handbook of the Economics of Innovation, edition 1, volume 2, chapter 0, pages 1129-1155, Elsevier.
    2. Bruce Kogut & Udo Zander, 1992. "Knowledge of the Firm, Combinative Capabilities, and the Replication of Technology," Organization Science, INFORMS, vol. 3(3), pages 383-397, August.
    3. Olivier Bertrand & Michael J. Mol, 2013. "The antecedents and innovation effects of domestic and offshore R&D outsourcing: The contingent impact of cognitive distance and absorptive capacity," Strategic Management Journal, Wiley Blackwell, vol. 34(6), pages 751-760, June.
    4. Keld Laursen & Nicolai J. Foss, 2003. "New human resource management practices, complementarities and the impact on innovation performance," Cambridge Journal of Economics, Oxford University Press, vol. 27(2), pages 243-263, March.
    5. Dahlander, Linus & Gann, David M., 2010. "How open is innovation?," Research Policy, Elsevier, vol. 39(6), pages 699-709, July.
    6. Saebi, Tina & Foss, Nicolai J., 2015. "Business models for open innovation: Matching heterogeneous open innovation strategies with business model dimensions," European Management Journal, Elsevier, vol. 33(3), pages 201-213.
    7. Christoph Grimpe & Ulrich Kaiser, 2010. "Balancing Internal and External Knowledge Acquisition: The Gains and Pains from R&D Outsourcing," Journal of Management Studies, Wiley Blackwell, vol. 47(8), pages 1483-1509, December.
    8. Aija Leiponen & Constance E. Helfat, 2011. "Location, Decentralization, and Knowledge Sources for Innovation," Organization Science, INFORMS, vol. 22(3), pages 641-658, June.
    9. Margarethe F. Wiersema & Harry P. Bowen, 2009. "The use of limited dependent variable techniques in strategy research: issues and methods," Strategic Management Journal, Wiley Blackwell, vol. 30(6), pages 679-692, June.
    10. Ghisetti, Claudia & Marzucchi, Alberto & Montresor, Sandro, 2015. "The open eco-innovation mode. An empirical investigation of eleven European countries," Research Policy, Elsevier, vol. 44(5), pages 1080-1093.
    11. Czarnitzki, Dirk & Hanel, Petr & Rosa, Julio Miguel, 2011. "Evaluating the impact of R&D tax credits on innovation: A microeconometric study on Canadian firms," Research Policy, Elsevier, vol. 40(2), pages 217-229, March.
    12. Mark Dodgson & David M. Gann & Nelson Phillips, 2013. "Organizational Learning and the Technology of Foolishness: The Case of Virtual Worlds at IBM," Organization Science, INFORMS, vol. 24(5), pages 1358-1376, October.
    13. Kristina Dahlin & L. Weingart & P. Hinds, 2005. "Team diversity and information use," Post-Print hal-00480406, HAL.
    14. Linus Dahlander & Siobhan O'Mahony & David M. Gann, 2016. "One foot in, one foot out: how does individuals' external search breadth affect innovation outcomes?," Strategic Management Journal, Wiley Blackwell, vol. 37(2), pages 280-302, February.
    15. Staats, Bradley R. & Milkman, Katherine L. & Fox, Craig R., 2012. "The team scaling fallacy: Underestimating the declining efficiency of larger teams," Organizational Behavior and Human Decision Processes, Elsevier, vol. 118(2), pages 132-142.
    16. John Seely Brown & Paul Duguid, 2001. "Knowledge and Organization: A Social-Practice Perspective," Organization Science, INFORMS, vol. 12(2), pages 198-213, April.
    17. Kenneth W. Koput, 1997. "A Chaotic Model of Innovative Search: Some Answers, Many Questions," Organization Science, INFORMS, vol. 8(5), pages 528-542, October.
    18. McDonald, John F & Moffitt, Robert A, 1980. "The Uses of Tobit Analysis," The Review of Economics and Statistics, MIT Press, vol. 62(2), pages 318-321, May.
    19. Grimpe, Christoph & Sofka, Wolfgang, 2009. "Search patterns and absorptive capacity: Low- and high-technology sectors in European countries," Research Policy, Elsevier, vol. 38(3), pages 495-506, April.
    20. Anthony Arundel & Keith Smith, 2013. "History of the Community Innovation Survey," Chapters, in: Fred Gault (ed.), Handbook of Innovation Indicators and Measurement, chapter 3, pages 60-87, Edward Elgar Publishing.
    21. Daniel A. Levinthal & James G. March, 1993. "The myopia of learning," Strategic Management Journal, Wiley Blackwell, vol. 14(S2), pages 95-112, December.
    22. Fred Gault (ed.), 2013. "Handbook of Innovation Indicators and Measurement," Books, Edward Elgar Publishing, number 14427.
    23. Richard F. J. Haans & Constant Pieters & Zi-Lin He, 2016. "Thinking about U: Theorizing and testing U- and inverted U-shaped relationships in strategy research," Strategic Management Journal, Wiley Blackwell, vol. 37(7), pages 1177-1195, July.
    24. William Ocasio, 1997. "Towards An Attention‐Based View Of The Firm," Strategic Management Journal, Wiley Blackwell, vol. 18(S1), pages 187-206, July.
    25. Bennet A. Zelner, 2009. "Using simulation to interpret results from logit, probit, and other nonlinear models," Strategic Management Journal, Wiley Blackwell, vol. 30(12), pages 1335-1348, December.
    26. Annapoornima M. Subramanian & Young Rok Choi & Soo-Hoon Lee & Chang-Chieh Hang, 2016. "Linking technological and educational level diversities to innovation performance," The Journal of Technology Transfer, Springer, vol. 41(2), pages 182-204, April.
    27. Kim, Bongsun & Kim, Eonsoo & Foss, Nicolai J., 2016. "Balancing absorptive capacity and inbound open innovation for sustained innovative performance: An attention-based view," European Management Journal, Elsevier, vol. 34(1), pages 80-90.
    28. Keld Laursen, 2012. "Keep searching and you'll find: what do we know about variety creation through firms' search activities for innovation?," Industrial and Corporate Change, Oxford University Press and the Associazione ICC, vol. 21(5), pages 1181-1220, October.
    29. Lori Rosenkopf & Atul Nerkar, 2001. "Beyond local search: boundary‐spanning, exploration, and impact in the optical disk industry," Strategic Management Journal, Wiley Blackwell, vol. 22(4), pages 287-306, April.
    30. Jinhong Xie & X. Michael Song & Anne Stringfellow, 1998. "Interfunctional Conflict, Conflict Resolution Styles, and New Product Success: A Four-Culture Comparison," Management Science, INFORMS, vol. 44(12-Part-2), pages 192-206, December.
    31. Stock, Ruth & Totzauer, Florian & Zacharias, Nicolas, 2014. "A Closer Look at Cross-functional R&D Cooperation for Innovativeness: Innovation-oriented Leadership and Human Resource Practices as Driving Forces," Publications of Darmstadt Technical University, Institute for Business Studies (BWL) 71019, Darmstadt Technical University, Department of Business Administration, Economics and Law, Institute for Business Studies (BWL).
    32. Davila, Antonio, 2003. "Short-term economic incentives in new product development," Research Policy, Elsevier, vol. 32(8), pages 1397-1420, September.
    33. Christoph Grimpe & Ulrich Kaiser, 2010. "Balancing Internal and External Knowledge Acquisition: The Gains and Pains from R&D Outsourcing," Journal of Management Studies, Wiley Blackwell, vol. 47(8), pages 1483-1509, December.
    34. Kevin Zheng Zhou & Fang Wu, 2010. "Technological capability, strategic flexibility, and product innovation," Strategic Management Journal, Wiley Blackwell, vol. 31(5), pages 547-561, May.
    35. Aija Leiponen & Constance E. Helfat, 2010. "Innovation objectives, knowledge sources, and the benefits of breadth," Strategic Management Journal, Wiley Blackwell, vol. 31(2), pages 224-236, February.
    36. Mattes, Jannika, 2014. "Formalisation and flexibilisation in organisations – Dynamic and selective approaches in corporate innovation processes," European Management Journal, Elsevier, vol. 32(3), pages 475-486.
    37. Aija Leiponen, 2012. "The benefits of R&D and breadth in innovation strategies: a comparison of Finnish service and manufacturing firms," Industrial and Corporate Change, Oxford University Press and the Associazione ICC, vol. 21(5), pages 1255-1281, October.
    38. Frédéric C. Godart & Andrew V. Shipilov & Kim Claes, 2014. "Making the Most of the Revolving Door: The Impact of Outward Personnel Mobility Networks on Organizational Creativity," Organization Science, INFORMS, vol. 25(2), pages 377-400, April.
    39. Laursen, Keld & Salter, Ammon J., 2014. "The paradox of openness: Appropriability, external search and collaboration," Research Policy, Elsevier, vol. 43(5), pages 867-878.
    40. Kevin Zheng Zhou & Caroline Bingxin Li, 2012. "How knowledge affects radical innovation: Knowledge base, market knowledge acquisition, and internal knowledge sharing," Strategic Management Journal, Wiley Blackwell, vol. 33(9), pages 1090-1102, September.
    41. Batistič, Saša & Černe, Matej & Kaše, Robert & Zupic, Ivan, 2016. "The role of organizational context in fostering employee proactive behavior: The interplay between HR system configurations and relational climates," European Management Journal, Elsevier, vol. 34(5), pages 579-588.
    42. Dovev Lavie, 2007. "Alliance portfolios and firm performance: A study of value creation and appropriation in the U.S. software industry," Strategic Management Journal, Wiley Blackwell, vol. 28(12), pages 1187-1212, December.
    43. Lee Fleming, 2001. "Recombinant Uncertainty in Technological Search," Management Science, INFORMS, vol. 47(1), pages 117-132, January.
    44. Stock, Ruth & Totzauer, Florian & Zacharias, Nicolas, 2014. "A Closer Look at Cross-functional R&D Cooperation for Innovativeness: Innovation-oriented Leadership and Human Resource Practices as Driving Forces," Publications of Darmstadt Technical University, Institute for Business Studies (BWL) 69918, Darmstadt Technical University, Department of Business Administration, Economics and Law, Institute for Business Studies (BWL).
    45. Jie Wu, 2014. "The effects of external knowledge search and CEO tenure on product innovation: evidence from Chinese firms," Industrial and Corporate Change, Oxford University Press and the Associazione ICC, vol. 23(1), pages 65-89, February.
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