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Entrepreneurial ecosystem and urban innovation: Contextual findings in the lens of sustainable development from China

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  • Zhao, Xin
  • Xu, Yong
  • Vasa, László
  • Shahzad, Umer

Abstract

Entrepreneurial activities constitute a critical antecedent to urban innovation (UI), which reflects the levels of innovation and creation activities in cities and is strongly related to their economic development. Existing research on UI focuses on the net effects of individual explanatories in isolation while leaving the synergistic effects between these factors under-examined. Drawing from the entrepreneurial ecosystem (EE) theory, we constructed an entrepreneurial ecosystem composed of market, finance, human capital, internet access, transportation, and government, adopting the fuzzy set qualitative comparative analysis (fsQCA) of 34 representative cities in China to analyze the combined effects of multiple elements underpinned UI. Consequently, the following findings were observed. First, no single entrepreneurial ecosystem element constitutes a necessary condition for a high UI level. Second, large markets and well-designed government services correspond well to high UI levels. Third, the lack of mature transportation and a large market lead to a non-high level. This study advances antecedent research on UI by addressing the complex mechanism of multi-factor linkages.

Suggested Citation

  • Zhao, Xin & Xu, Yong & Vasa, László & Shahzad, Umer, 2023. "Entrepreneurial ecosystem and urban innovation: Contextual findings in the lens of sustainable development from China," Technological Forecasting and Social Change, Elsevier, vol. 191(C).
  • Handle: RePEc:eee:tefoso:v:191:y:2023:i:c:s0040162523002111
    DOI: 10.1016/j.techfore.2023.122526
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    1. Bernhard Fabian Bichler & Andreas Kallmuenzer & Mike Peters & Tanja Petry & Thomas Clauss, 2022. "Regional entrepreneurial ecosystems: how family firm embeddedness triggers ecosystem development," Review of Managerial Science, Springer, vol. 16(1), pages 15-44, January.
    2. Berger, Elisabeth S.C. & Kuckertz, Andreas, 2016. "Female entrepreneurship in startup ecosystems worldwide," Journal of Business Research, Elsevier, vol. 69(11), pages 5163-5168.
    3. L Carlos Freire-Gibb & Geoff Gregson, 2019. "Innovation systems and entrepreneurial ecosystems: Implications for policy and practice in Latin America," Local Economy, London South Bank University, vol. 34(8), pages 787-806, December.
    4. Hao, Jing & He, Feng, 2022. "Corporate social responsibility (CSR) performance and green innovation: Evidence from China," Finance Research Letters, Elsevier, vol. 48(C).
    5. Roundy, Philip T. & Bradshaw, Mike & Brockman, Beverly K., 2018. "The emergence of entrepreneurial ecosystems: A complex adaptive systems approach," Journal of Business Research, Elsevier, vol. 86(C), pages 1-10.
    6. Spilling, Olav R., 1996. "The entrepreneurial system: On entrepreneurship in the context of a mega-event," Journal of Business Research, Elsevier, vol. 36(1), pages 91-103, May.
    7. Ben Spigel, 2017. "The Relational Organization of Entrepreneurial Ecosystems," Entrepreneurship Theory and Practice, , vol. 41(1), pages 49-72, January.
    8. Bernd Wurth & Erik Stam & Ben Spigel, 2022. "Toward an Entrepreneurial Ecosystem Research Program," Entrepreneurship Theory and Practice, , vol. 46(3), pages 729-778, May.
    9. Katharina Scheidgen, 2021. "Degrees of integration: how a fragmented entrepreneurial ecosystem promotes different types of entrepreneurs," Entrepreneurship & Regional Development, Taylor & Francis Journals, vol. 33(1-2), pages 54-79, January.
    10. Willem Hulsink & Victor Scholten, 2017. "Dedicated funding for leasing and sharing research and test facilities and its impact on innovation, follow-on financing and growth of biotech start-ups: the Mibiton case," Venture Capital, Taylor & Francis Journals, vol. 19(1-2), pages 95-118, January.
    11. Gonzalez-Navarro, Marco & Turner, Matthew A., 2018. "Subways and urban growth: Evidence from earth," Journal of Urban Economics, Elsevier, vol. 108(C), pages 85-106.
    12. Lattacher, Wolfgang & Gregori, Patrick & Holzmann, Patrick & Schwarz, Erich J., 2021. "Knowledge spillover in entrepreneurial emergence: A learning perspective," Technological Forecasting and Social Change, Elsevier, vol. 166(C).
    13. Dul, Jan, 2016. "Identifying single necessary conditions with NCA and fsQCA," Journal of Business Research, Elsevier, vol. 69(4), pages 1516-1523.
    14. Garry D. Bruton & David Ahlstrom & Han–Lin Li, 2010. "Institutional Theory and Entrepreneurship: Where Are We Now and Where Do We Need to Move in the Future?," Entrepreneurship Theory and Practice, , vol. 34(3), pages 421-440, May.
    15. Michael Stuetzer & David B. Audretsch & Martin Obschonka & Samuel D. Gosling & Peter J. Rentfrow & Jeff Potter, 2018. "Entrepreneurship culture, knowledge spillovers and the growth of regions," Regional Studies, Taylor & Francis Journals, vol. 52(5), pages 608-618, May.
    16. David B. Audretsch & Maksim Belitski, 2017. "Entrepreneurial ecosystems in cities: establishing the framework conditions," The Journal of Technology Transfer, Springer, vol. 42(5), pages 1030-1051, October.
    17. Edward L. Glaeser & Giacomo A. M. Ponzetto & Kristina Tobio, 2014. "Cities, Skills and Regional Change," Regional Studies, Taylor & Francis Journals, vol. 48(1), pages 7-43, January.
    18. Wei, Yifan, 2022. "Reprint of: Regional governments and opportunity entrepreneurship in underdeveloped institutional environments: An entrepreneurial ecosystem perspective," Research Policy, Elsevier, vol. 51(9).
    19. Borah, Dhruba & Ellwood, Paul, 2022. "The micro-foundations of conflicts in joint university-industry laboratories," Technological Forecasting and Social Change, Elsevier, vol. 175(C).
    20. Kathleen Krause & Dirk Battenfeld, 2019. "Coming Out of the Niche? Social Banking in Germany: An Empirical Analysis of Consumer Characteristics and Market Size," Journal of Business Ethics, Springer, vol. 155(3), pages 889-911, March.
    21. Ana Paula Faria & Natália Barbosa & Joana Bastos, 2020. "Portuguese regional innovation systems efficiency in the European Union context," European Planning Studies, Taylor & Francis Journals, vol. 28(8), pages 1599-1618, August.
    22. Sascha Kraus & William McDowell & Domingo Enrique Ribeiro-Soriano & María Rodríguez-García, 2021. "The role of innovation and knowledge for entrepreneurship and regional development," Entrepreneurship & Regional Development, Taylor & Francis Journals, vol. 33(3-4), pages 175-184, March.
    23. Xie, Luqun & Zhou, Jieyu & Zong, Qingqing & Lu, Qian, 2020. "Gender diversity in R&D teams and innovation efficiency: Role of the innovation context," Research Policy, Elsevier, vol. 49(1).
    24. Philipp Kruse & Dominika Wach & Jürgen Wegge, 2021. "What motivates social entrepreneurs? A meta-analysis on predictors of the intention to found a social enterprise," Journal of Small Business Management, Taylor & Francis Journals, vol. 59(3), pages 477-508, May.
    25. Deepak Hegde & Justin Tumlinson, 2021. "Information frictions and entrepreneurship," Strategic Management Journal, Wiley Blackwell, vol. 42(3), pages 491-528, March.
    26. Jeroen Content & Niels Bosma & Jacob Jordaan & Mark Sanders, 2020. "Entrepreneurial ecosystems, entrepreneurial activity and economic growth: new evidence from European regions," Regional Studies, Taylor & Francis Journals, vol. 54(8), pages 1007-1019, July.
    27. Wei, Yifan, 2022. "Regional governments and opportunity entrepreneurship in underdeveloped institutional environments: An entrepreneurial ecosystem perspective," Research Policy, Elsevier, vol. 51(1).
    28. Ruta Aidis & Saul Estrin & Tomasz Mickiewicz, 2012. "Size matters: entrepreneurial entry and government," Small Business Economics, Springer, vol. 39(1), pages 119-139, July.
    29. Tóth, Zsófia & Thiesbrummel, Christoph & Henneberg, Stephan C. & Naudé, Peter, 2015. "Understanding configurations of relational attractiveness of the customer firm using fuzzy set QCA," Journal of Business Research, Elsevier, vol. 68(3), pages 723-734.
    30. Paul Gompers & Josh Lerner & David Scharfstein, 2005. "Entrepreneurial Spawning: Public Corporations and the Genesis of New Ventures, 1986 to 1999," Journal of Finance, American Finance Association, vol. 60(2), pages 577-614, April.
    31. Walter Steingress, 2019. "Market size and entry in international trade: Product versus firm fixed costs," Review of International Economics, Wiley Blackwell, vol. 27(5), pages 1351-1370, November.
    32. C. Weerakoon & A.J. McMurray & N. Rametse & P. Arenius, 2020. "Knowledge creation theory of entrepreneurial orientation in social enterprises," Journal of Small Business Management, Taylor & Francis Journals, vol. 58(4), pages 834-870, July.
    33. Donato Iacobucci & Francesco Perugini, 2021. "Entrepreneurial ecosystems and economic resilience at local level," Entrepreneurship & Regional Development, Taylor & Francis Journals, vol. 33(9-10), pages 689-716, October.
    34. Eric Liguori & Josh Bendickson & Shelby Solomon & William C. McDowell, 2019. "Development of a multi-dimensional measure for assessing entrepreneurial ecosystems," Entrepreneurship & Regional Development, Taylor & Francis Journals, vol. 31(1-2), pages 7-21, January.
    35. Martin Bliemel & Ricardo Flores & Saskia De Klerk & Morgan P. Miles, 2019. "Accelerators as start-up infrastructure for entrepreneurial clusters," Entrepreneurship & Regional Development, Taylor & Francis Journals, vol. 31(1-2), pages 133-149, January.
    36. Andres Jauregui & Kirk C. Heriot & David T. Mitchell, 2021. "Corruption and formal-sector entrepreneurship in a middle-income country: spatial analysis of firm births in the Mexican states," Small Business Economics, Springer, vol. 57(4), pages 1957-1972, December.
    37. Wenying Fu, 2020. "Spatial mobility and opportunity-driven entrepreneurship: the evidence from China labor-force dynamics survey," The Journal of Technology Transfer, Springer, vol. 45(5), pages 1324-1342, October.
    38. Thomas Greckhamer, 2016. "CEO compensation in relation to worker compensation across countries: The configurational impact of country-level institutions," Strategic Management Journal, Wiley Blackwell, vol. 37(4), pages 793-815, April.
    39. Douglas, Evan J. & Shepherd, Dean A. & Prentice, Catherine, 2020. "Using fuzzy-set qualitative comparative analysis for a finer-grained understanding of entrepreneurship," Journal of Business Venturing, Elsevier, vol. 35(1).
    40. Martin Andersson & Sierdjan Koster, 2011. "Sources of persistence in regional start-up rates--evidence from Sweden," Journal of Economic Geography, Oxford University Press, vol. 11(1), pages 179-201, January.
    41. Diana M. Hechavarría & Amy E. Ingram, 2019. "Entrepreneurial ecosystem conditions and gendered national-level entrepreneurial activity: a 14-year panel study of GEM," Small Business Economics, Springer, vol. 53(2), pages 431-458, August.
    42. Anthony J. Venables, 2010. "Economic geography and African development," Papers in Regional Science, Wiley Blackwell, vol. 89(3), pages 469-483, August.
    43. Erik Stam & Andrew Ven, 2021. "Entrepreneurial ecosystem elements," Small Business Economics, Springer, vol. 56(2), pages 809-832, February.
    44. Ali, Abdul & Kelley, Donna J. & Levie, Jonathan, 2020. "Market-driven entrepreneurship and institutions," Journal of Business Research, Elsevier, vol. 113(C), pages 117-128.
    45. Juanyi Chen & Li Cai & Garry D. Bruton & Naiheng Sheng, 2020. "Entrepreneurial ecosystems: what we know and where we move as we build an understanding of China," Entrepreneurship & Regional Development, Taylor & Francis Journals, vol. 32(5-6), pages 370-388, May.
    46. Pedro Torres & Pedro Godinho, 2022. "Levels of necessity of entrepreneurial ecosystems elements," Small Business Economics, Springer, vol. 59(1), pages 29-45, June.
    47. Niccolò Ghio & Massimiliano Guerini & Erik Lehmann & Cristina Rossi-Lamastra, 2015. "The emergence of the knowledge spillover theory of entrepreneurship," Small Business Economics, Springer, vol. 44(1), pages 1-18, January.
    48. Alexandre Garel & Alireza Tourani-Rad & Shengze Xu, 2022. "Corporate Social Responsibility and Capital Allocation Efficiency in Australia and New Zealand," JRFM, MDPI, vol. 15(3), pages 1-18, February.
    49. Kwok Tong Soo, 2018. "Innovation across cities," Journal of Regional Science, Wiley Blackwell, vol. 58(2), pages 295-314, March.
    50. David B. Audretsch & James A. Cunningham & Donald F. Kuratko & Erik E. Lehmann & Matthias Menter, 2019. "Entrepreneurial ecosystems: economic, technological, and societal impacts," The Journal of Technology Transfer, Springer, vol. 44(2), pages 313-325, April.
    51. Miona Milosevic & Benjamin Le Pendeven & Jacqueline Fendt, 2020. "Follow-on financing through syndication in the VC industry – a signaling perspective of VC human capital and fund characteristics," Venture Capital, Taylor & Francis Journals, vol. 22(1), pages 35-69, January.
    52. Alexander Berman & Marcelo Cano-Kollmann & Ram Mudambi, 2022. "Innovation and entrepreneurial ecosystems: fintech in the financial services industry," Review of Managerial Science, Springer, vol. 16(1), pages 45-64, January.
    53. Julia Korosteleva & Maksim Belitski, 2017. "Entrepreneurial dynamics and higher education institutions in the post-Communist world," Regional Studies, Taylor & Francis Journals, vol. 51(3), pages 439-453, March.
    54. Felipe Balmaceda, 2018. "Entrepreneurship: skills and financing," Small Business Economics, Springer, vol. 50(4), pages 871-886, April.
    55. David Audretsch & Diana Heger & Tobias Veith, 2015. "Infrastructure and entrepreneurship," Small Business Economics, Springer, vol. 44(2), pages 219-230, February.
    56. Solomon, Shelby J. & Bendickson, Joshua S. & Marvel, Matt R. & McDowell, William C. & Mahto, Raj, 2021. "Agency theory and entrepreneurship: A cross-country analysis," Journal of Business Research, Elsevier, vol. 122(C), pages 466-476.
    57. Han, Jin & Ruan, Yi & Wang, Yanmin & Zhou, Haibo, 2021. "Toward a complex adaptive system: The case of the Zhongguancun entrepreneurship ecosystem," Journal of Business Research, Elsevier, vol. 128(C), pages 537-550.
    58. Stav Fainshmidt & Michael A Witt & Ruth V Aguilera & Alain Verbeke, 2020. "The contributions of qualitative comparative analysis (QCA) to international business research," Journal of International Business Studies, Palgrave Macmillan;Academy of International Business, vol. 51(4), pages 455-466, June.
    59. Fahimeh Khatami & Veronica Scuotto & Norris Krueger & Valter Cantino, 2022. "The influence of the entrepreneurial ecosystem model on sustainable innovation from a macro-level lens," International Entrepreneurship and Management Journal, Springer, vol. 18(4), pages 1419-1451, December.
    60. Deborah Strumsky & Jean-Claude Thill, 2013. "Profiling U.S. Metropolitan Regions By Their Social Research Networks And Regional Economic Performance," Journal of Regional Science, Wiley Blackwell, vol. 53(5), pages 813-833, December.
    61. Cristian Barra & Roberto Zotti, 2018. "The contribution of university, private and public sector resources to Italian regional innovation system (in)efficiency," The Journal of Technology Transfer, Springer, vol. 43(2), pages 432-457, April.
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    More about this item

    Keywords

    Entrepreneurial ecosystem; Urban innovation level; Configuration effect; fsQCA; China;
    All these keywords.

    JEL classification:

    • M13 - Business Administration and Business Economics; Marketing; Accounting; Personnel Economics - - Business Administration - - - New Firms; Startups
    • M21 - Business Administration and Business Economics; Marketing; Accounting; Personnel Economics - - Business Economics - - - Business Economics
    • O18 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Urban, Rural, Regional, and Transportation Analysis; Housing; Infrastructure
    • R11 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - Regional Economic Activity: Growth, Development, Environmental Issues, and Changes
    • R58 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Regional Government Analysis - - - Regional Development Planning and Policy

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