IDEAS home Printed from https://ideas.repec.org/a/sae/entthe/v38y2014i3p501-525.html
   My bibliography  Save this article

How Exactly Do Network Relationships Pay Off? The Effects of Network Size and Relationship Quality on Access to Start–Up Resources

Author

Listed:
  • Thorsten Semrau
  • Arndt Werner

Abstract

Entrepreneurs are expected to profit from network relationships. Research addressing the link between entrepreneurs’ network characteristics and their performance, however, has so far produced inconclusive results. In an attempt to explain these inconsistencies, we investigate the resource returns connected to network size and relationship quality. Based on a sample of 379 nascent entrepreneurs, we find that increasing network size and relationship quality results in diminishing marginal returns in terms of access to financial capital, knowledge and information, and additional business contacts. Additionally, we observe that the returns vary strongly by resource type.

Suggested Citation

  • Thorsten Semrau & Arndt Werner, 2014. "How Exactly Do Network Relationships Pay Off? The Effects of Network Size and Relationship Quality on Access to Start–Up Resources," Entrepreneurship Theory and Practice, , vol. 38(3), pages 501-525, May.
    • Handle: RePEc:sae:entthe:v:38:y:2014:i:3:p:501-525
    DOI: 10.1111/etap.12011
    as

    Download full text from publisher

    File URL: https://journals.sagepub.com/doi/10.1111/etap.12011
    Download Restriction: no
    File URL: https://libkey.io/10.1111/etap.12011?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. Nan Langowitz & Maria Minniti, 2007. "The Entrepreneurial Propensity of Women," Entrepreneurship Theory and Practice, , vol. 31(3), pages 341-364, May.
    2. Monica Diochon & Teresa V. Menzies & Yvon Gasse, 2008. "Exploring The Nature And Impact Of Gestation-Specific Human Capital Among Nascent Entrepreneurs," Journal of Developmental Entrepreneurship (JDE), World Scientific Publishing Co. Pte. Ltd., vol. 13(02), pages 151-165.
    3. Patrick J. Murphy & Jill Kickul & Saulo Dubard-Barbosa & Lindsay Titus, 2007. "Expert capital and perceived legitimacy: Female-run entrepreneurial venture signalling and performance," Post-Print halshs-00155792, HAL.
    4. Elfring, Tom & Hulsink, Willem, 2003. "Networks in Entrepreneurship: The Case of High-Technology Firms," Small Business Economics, Springer, vol. 21(4), pages 409-422, December.
    5. Andrea Larson & Jennifer A. Starr, 1993. "A Network Model of Organization Formation," Entrepreneurship Theory and Practice, , vol. 17(2), pages 5-15, January.
    6. Watson, John, 2007. "Modeling the relationship between networking and firm performance," Journal of Business Venturing, Elsevier, vol. 22(6), pages 852-874, November.
    7. Per Davidsson & Scott Gordon, 2012. "Panel studies of new venture creation: a methods-focused review and suggestions for future research," Small Business Economics, Springer, vol. 39(4), pages 853-876, November.
    8. Joel A. C. Baum & Tony Calabrese & Brian S. Silverman, 2000. "Don't go it alone: alliance network composition and startups' performance in Canadian biotechnology," Strategic Management Journal, Wiley Blackwell, vol. 21(3), pages 267-294, March.
    9. Leon Schjoedt & Kelly G. Shaver, 2007. "Deciding on an Entrepreneurial Career: A Test of the Pull and Push Hypotheses Using the Panel Study of Entrepreneurial Dynamics Data1," Entrepreneurship Theory and Practice, , vol. 31(5), pages 733-752, September.
    10. Gordon Kingsley & Edward J. Malecki, 2004. "Networking for Competitiveness," Small Business Economics, Springer, vol. 23(1), pages 71-84, August.
    11. Benson Honig & Miri Lerner & Yoel Raban, 2006. "Social Capital and the Linkages of High-Tech Companies to the Military Defense System: Is there a Signaling Mechanism?," Small Business Economics, Springer, vol. 27(4), pages 419-437, December.
    12. Bruderl, Josef & Preisendorfer, Peter, 1998. "Network Support and the Success of Newly Founded Businesses," Small Business Economics, Springer, vol. 10(3), pages 213-225, May.
    13. Bat Batjargal, 2005. "Entrepreneurial versatility, resources and firm performance in Russia: a panel study," International Journal of Entrepreneurship and Innovation Management, Inderscience Enterprises Ltd, vol. 5(3/4), pages 284-297.
    14. Greve, Arent, 1995. "Networks and entrepreneurship -- an analysis of social relations, occupational background, and use of contacts during the establishment process," Scandinavian Journal of Management, Elsevier, vol. 11(1), pages 1-24, March.
    15. Don Y. Lee & Eric W. K. Tsang, 2001. "The effects of entrepreneurial personality, background and network activities on venture growth," Journal of Management Studies, Wiley Blackwell, vol. 38(4), pages 583-602, June.
    16. Hoang, Ha & Antoncic, Bostjan, 2003. "Network-based research in entrepreneurship: A critical review," Journal of Business Venturing, Elsevier, vol. 18(2), pages 165-187, March.
    17. Batjargal, Bat, 2007. "Internet entrepreneurship: Social capital, human capital, and performance of Internet ventures in China," Research Policy, Elsevier, vol. 36(5), pages 605-618, June.
    18. Lechner, Christian & Dowling, Michael & Welpe, Isabell, 2006. "Firm networks and firm development: The role of the relational mix," Journal of Business Venturing, Elsevier, vol. 21(4), pages 514-540, July.
    19. Sarah L. Jack, 2005. "The Role, Use and Activation of Strong and Weak Network Ties: A Qualitative Analysis," Journal of Management Studies, Wiley Blackwell, vol. 42(6), pages 1233-1259, September.
    20. Ornit Raz & Peter A. Gloor, 2007. "Size Really Matters--New Insights for Start-ups' Survival," Management Science, INFORMS, vol. 53(2), pages 169-177, February.
    21. Arent Greve & Janet W. Salaff, 2003. "Social Networks and Entrepreneurship," Entrepreneurship Theory and Practice, , vol. 28(1), pages 1-22, January.
    22. Marco Caliendo & Frank Fossen & Alexander Kritikos, 2009. "Risk attitudes of nascent entrepreneurs–new evidence from an experimentally validated survey," Small Business Economics, Springer, vol. 32(2), pages 153-167, February.
    23. Paul D. Reynolds & Nancy M. Carter & William B. Gartner & Patricia G. Greene, 2004. "The Prevalence of Nascent Entrepreneurs in the United States: Evidence from the Panel Study of Entrepreneurial Dynamics," Small Business Economics, Springer, vol. 23(4), pages 263-284, November.
    24. Colombo, Massimo G. & Grilli, Luca & Piva, Evila, 2006. "In search of complementary assets: The determinants of alliance formation of high-tech start-ups," Research Policy, Elsevier, vol. 35(8), pages 1166-1199, October.
    25. Jack, Sarah L., 2010. "Approaches to studying networks: Implications and outcomes," Journal of Business Venturing, Elsevier, vol. 25(1), pages 120-137, January.
    26. Duchesneau, Donald A. & Gartner, William B., 1990. "A profile of new venture success and failure in an emerging industry," Journal of Business Venturing, Elsevier, vol. 5(5), pages 297-312, September.
    27. Bhagavatula, Suresh & Elfring, Tom & van Tilburg, Aad & van de Bunt, Gerhard G., 2010. "How social and human capital influence opportunity recognition and resource mobilization in India's handloom industry," Journal of Business Venturing, Elsevier, vol. 25(3), pages 245-260, May.
    28. Dorothea Schäfer & Oleksandr Talavera, 2009. "Small business survival and inheritance: evidence from Germany," Small Business Economics, Springer, vol. 32(1), pages 95-109, January.
    29. Elizabeth Chell & Susan Baines, 2000. "Networking, entrepreneurship and microbusiness behaviour," Entrepreneurship & Regional Development, Taylor & Francis Journals, vol. 12(3), pages 195-215, July.
    30. Dennis Hanlon & Chad Saunders, 2007. "Marshaling Resources to Form Small New Ventures: Toward a More Holistic Understanding of Entrepreneurial Support," Entrepreneurship Theory and Practice, , vol. 31(4), pages 619-641, July.
    31. Eric L. Hansen, 1995. "Entrepreneurial Networks and New Organization Growth," Entrepreneurship Theory and Practice, , vol. 19(4), pages 7-19, July.
    32. Davidsson, Per & Honig, Benson, 2003. "The role of social and human capital among nascent entrepreneurs," Journal of Business Venturing, Elsevier, vol. 18(3), pages 301-331, May.
    33. Simon Mosey & Mike Wright, 2007. "From Human Capital to Social Capital: A Longitudinal Study of Technology–Based Academic Entrepreneurs," Entrepreneurship Theory and Practice, , vol. 31(6), pages 909-935, November.
    34. Bat Batjargal & Mannie (Manhong) Liu, 2004. "Entrepreneurs’ Access to Private Equity in China: The Role of Social Capital," Organization Science, INFORMS, vol. 15(2), pages 159-172, April.
    35. Frédéric Delmar & Scott Shane, 2006. "Does Experience Matter? The Effect of Founding Team Experience on the Survival and Sales of Newly Founded Ventures," Post-Print hal-02311638, HAL.
    36. Lloyd Steier & Royston Greenwood, 1995. "Venture Capitalist Relationships In The Deal Structuring And Post‐Investment Stages Of New Firm Creation," Journal of Management Studies, Wiley Blackwell, vol. 32(3), pages 337-357, May.
    37. Grandi, Alessandro & Grimaldi, Rosa, 2003. "Exploring the Networking Characteristics of New Venture Founding Teams," Small Business Economics, Springer, vol. 21(4), pages 329-341, December.
    38. Kwon, Seok-Woo & Arenius, Pia, 2010. "Nations of entrepreneurs: A social capital perspective," Journal of Business Venturing, Elsevier, vol. 25(3), pages 315-330, May.
    39. Kim, Phillip H. & Aldrich, Howard E., 2005. "Social Capital and Entrepreneurship," Foundations and Trends(R) in Entrepreneurship, now publishers, vol. 1(2), pages 55-104, June.
    40. Ray E. Reagans & Ezra W. Zuckerman, 2008. "Why knowledge does not equal power: the network redundancy trade-off," Industrial and Corporate Change, Oxford University Press and the Associazione ICC, vol. 17(5), pages 903-944, October.
    41. Mikael Samuelsson & Per Davidsson, 2009. "Does venture opportunity variation matter? Investigating systematic process differences between innovative and imitative new ventures," Small Business Economics, Springer, vol. 33(2), pages 229-255, August.
    42. P. Mueller, 2006. "Entrepreneurship in the Region: Breeding Ground for Nascent Entrepreneurs?," Small Business Economics, Springer, vol. 27(1), pages 41-58, August.
    43. Michael N. Mitchell & Xiao Chen, 2005. "Visualizing main effects and interactions for binary logit models," Stata Journal, StataCorp LP, vol. 5(1), pages 64-82, March.
    44. Birley, Sue, 1985. "The role of networks in the entrepreneurial process," Journal of Business Venturing, Elsevier, vol. 1(1), pages 107-117.
    45. Brush, Candida G. & Vanderwerf, Pieter A., 1992. "A comparison of methods and sources for obtaining estimates of new venture performance," Journal of Business Venturing, Elsevier, vol. 7(2), pages 157-170, March.
    46. Julie M. Hite & William S. Hesterly, 2001. "The evolution of firm networks: from emergence to early growth of the firm," Strategic Management Journal, Wiley Blackwell, vol. 22(3), pages 275-286, March.
    47. Ranjay Gulati & Monica C. Higgins, 2003. "Which ties matter when? the contingent effects of interorganizational partnerships on IPO success," Strategic Management Journal, Wiley Blackwell, vol. 24(2), pages 127-144, February.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Jörn H. Block & Andreas Landgraf, 2016. "Transition from part-time entrepreneurship to full-time entrepreneurship: the role of financial and non-financial motives," International Entrepreneurship and Management Journal, Springer, vol. 12(1), pages 259-282, March.
    2. Ronald S. Burt, 2019. "Network Disadvantaged Entrepreneurs: Density, Hierarchy, and Success in China and the West," Entrepreneurship Theory and Practice, , vol. 43(1), pages 19-50, January.
    3. Yang, Junping & Zhang, Mengjie & Ballester-Miquel, José Carlos & Ribeiro-Navarrete, Samuel, 2022. "Exploring what drives entrepreneurs: Intergenerational differences between entrepreneurs born in the 1980s and 1990s," Technological Forecasting and Social Change, Elsevier, vol. 183(C).
    4. Thommie Burström & Jussi Harri & Timothy. L. Wilson, 2018. "Nascent Entrepreneurs Managing in Networks: Equivocality, Multiplexity and Tie Formation," Journal of Enterprising Culture (JEC), World Scientific Publishing Co. Pte. Ltd., vol. 26(01), pages 51-83, March.
    5. Covin, Jeffrey G. & Eggers, Fabian & Kraus, Sascha & Cheng, Cheng-Feng & Chang, Man-Ling, 2016. "Marketing-related resources and radical innovativeness in family and non-family firms: A configurational approach," Journal of Business Research, Elsevier, vol. 69(12), pages 5620-5627.
    6. Thorsten Semrau & Christian Hopp, 2016. "Complementary or compensatory? A contingency perspective on how entrepreneurs’ human and social capital interact in shaping start-up progress," Small Business Economics, Springer, vol. 46(3), pages 407-423, March.
    7. Mueller, Christoph E., 2023. "Startup grants and the development of academic startup projects during funding: Quasi-experimental evidence from the German ‘EXIST – Business startup grant’," Journal of Business Venturing Insights, Elsevier, vol. 20(C).
    8. Schlömer-Laufen Nadine & Schneck Stefan, 2020. "Data for Mittelstand Companies in Germany at the IfM Bonn," Journal of Economics and Statistics (Jahrbuecher fuer Nationaloekonomie und Statistik), De Gruyter, vol. 240(6), pages 849-859, December.
    9. Drummond, Conor & O'Toole, Thomas & McGrath, Helen, 2022. "Social Media resourcing of an entrepreneurial firm network: Collaborative mobilisation processes," Journal of Business Research, Elsevier, vol. 145(C), pages 171-187.
    10. Noelia Franco-Leal & Carmen Camelo-Ordaz & Juan Pablo Dianez-Gonzalez & Elena Sousa-Ginel, 2020. "The Role of Social and Institutional Contexts in Social Innovations of Spanish Academic Spinoffs," Sustainability, MDPI, vol. 12(3), pages 1-24, January.
    11. Shayegheh Ashourizadeh & Jizhen Li & Kent Adsbøll Wickstrøm, 0. "Immigrants` Entrepreneurial Networks and Export: A Comparative Study," International Entrepreneurship and Management Journal, Springer, vol. 0, pages 1-28.
    12. Hongjuan Zhang & Liang Wang & Rong Han, 2019. "The China-West divide on social capital: A meta-analysis," Asia Pacific Journal of Management, Springer, vol. 36(3), pages 745-772, September.
    13. Bijedić, Teita & Maaß, Frank & Schröder, Christian & Werner, Arndt, 2016. "Individual and structural influences on the entrepreneurial activities of academics," Working Papers 08/16, Institut für Mittelstandsforschung (IfM) Bonn.
    14. Kuhn, Kristine M. & Galloway, Tera L. & Collins-Williams, Maureen, 2017. "Simply the best: An exploration of advice that small business owners value," Journal of Business Venturing Insights, Elsevier, vol. 8(C), pages 33-40.
    15. Shayegheh Ashourizadeh & Mehrzad Saeedikiya, 2022. "Immigrant and native export benefiting from business collaborations: a global study," Papers 2205.13171, arXiv.org.
    16. Bijedić, Teita & Schröder, Christian & Werner, Arndt & Chen, Xiangyu, 2023. "How do working conditions, network relationships, and institutional support offers effect entrepreneurial intentions of German university scientists?," Technovation, Elsevier, vol. 123(C).
    17. Yisca Monnickendam-Givon & Dafna Schwartz & Benjamin Gidron, 2016. "Network Not Utilized: The Case Of Ultra-Orthodox Female Micro-Entrepreneurs In Israel," Journal of Developmental Entrepreneurship (JDE), World Scientific Publishing Co. Pte. Ltd., vol. 21(01), pages 1-19, March.
    18. Smith, Claudia G. & Smith, J. Brock, 2021. "Founders' uses of digital networks for resource acquisition: Extending network theory online," Journal of Business Research, Elsevier, vol. 125(C), pages 466-482.
    19. Yeoh Khar Kheng* & Mohamad Yusop B. Mohd Jani & Mohd Sufli B. Yusof, 2018. "Internationalization of Malaysian Service Smes: The Leveraging Role of Network Capital and the Internet-Enabled Business Environment," The Journal of Social Sciences Research, Academic Research Publishing Group, pages 718-728:6.
    20. Yan Li & Weiping Chen, 2023. "Acquisition and Utilization of Chinese Peasant e-Entrepreneurs’ Online Social Capital: The Moderating Effect of Offline Social Capital," Sustainability, MDPI, vol. 15(7), pages 1-16, April.
    21. Andrzej Bia³as, 2016. "Cost-Benefits Aspects In Risk Management," Polish Journal of Management Studies, Czestochowa Technical University, Department of Management, vol. 14(1), pages 28-39, December.
    22. Bembom, Michael & Schwens, Christian, 2018. "The role of networks in early internationalizing firms: A systematic review and future research agenda," European Management Journal, Elsevier, vol. 36(6), pages 679-694.
    23. Nikiforou, Argyro Iro & Lioukas, Spyros & Voudouris, Irini, 2020. "Network structure and firm-level entrepreneurial behavior: The role of market and technological knowledge networks," Journal of Business Research, Elsevier, vol. 106(C), pages 129-138.
    24. Damien Dietsch & Rim Khemiri, 2018. "Impact Of The Use Of Knowledge Obtained Through Informal Exchanges On The Performance Of Innovation Projects: For The Enrichment Of Inbound Open Innovation Practices," International Journal of Innovation Management (ijim), World Scientific Publishing Co. Pte. Ltd., vol. 22(06), pages 1-35, August.
    25. Hadjielias, Elias & Dada, Olufunmilola (Lola) & Eliades, Kostas, 2021. "Entrepreneurial process in international multiunit franchise outlets: A social capital perspective," Journal of Business Research, Elsevier, vol. 134(C), pages 13-28.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Semrau, Thorsten & Werner, Arndt, 2009. "How exactly do networking Investments pay off? Analyzing the impact of nascent Entrepreneurs networking Investments on Access to Start-Up Resources," MPRA Paper 18350, University Library of Munich, Germany.
    2. Jack, Sarah L., 2010. "Approaches to studying networks: Implications and outcomes," Journal of Business Venturing, Elsevier, vol. 25(1), pages 120-137, January.
    3. Christopher Hayter, 2013. "Conceptualizing knowledge-based entrepreneurship networks: perspectives from the literature," Small Business Economics, Springer, vol. 41(4), pages 899-911, December.
    4. Susanna Slotte–Kock & Nicole Coviello, 2010. "Entrepreneurship Research on Network Processes: A Review and Ways Forward," Entrepreneurship Theory and Practice, , vol. 34(1), pages 31-57, January.
    5. Stam, Wouter & Arzlanian, Souren & Elfring, Tom, 2014. "Social capital of entrepreneurs and small firm performance: A meta-analysis of contextual and methodological moderators," Journal of Business Venturing, Elsevier, vol. 29(1), pages 152-173.
    6. Thorsten Semrau & Christian Hopp, 2016. "Complementary or compensatory? A contingency perspective on how entrepreneurs’ human and social capital interact in shaping start-up progress," Small Business Economics, Springer, vol. 46(3), pages 407-423, March.
    7. Boris Bauke & Thorsten Semrau & Zheng Han, 2016. "Relational trust and new ventures’ performance: the moderating impact of national-level institutional weakness," International Entrepreneurship and Management Journal, Springer, vol. 12(4), pages 1007-1024, December.
    8. Newbert, Scott L. & Tornikoski, Erno T. & Quigley, Narda R., 2013. "Exploring the evolution of supporter networks in the creation of new organizations," Journal of Business Venturing, Elsevier, vol. 28(2), pages 281-298.
    9. Jean–Luc Arregle & Bat Batjargal & Michael A. Hitt & Justin W. Webb & Toyah Miller & Anne S. Tsui, 2015. "Family Ties in Entrepreneurs’ Social Networks and New Venture Growth," Entrepreneurship Theory and Practice, , vol. 39(2), pages 313-344, March.
    10. Scott Newbert & Erno Tornikoski, 2012. "Supporter networks and network growth: a contingency model of organizational emergence," Small Business Economics, Springer, vol. 39(1), pages 141-159, July.
    11. Thommie Burström & Jussi Harri & Timothy. L. Wilson, 2018. "Nascent Entrepreneurs Managing in Networks: Equivocality, Multiplexity and Tie Formation," Journal of Enterprising Culture (JEC), World Scientific Publishing Co. Pte. Ltd., vol. 26(01), pages 51-83, March.
    12. Bharat Bhushan & Raj K. Kovid & Deepa Kumari, 2020. "Entrepreneurial Networks and Venture Growth: Insights from Information Technology Firms in an Emerging Market," FIIB Business Review, , vol. 9(3), pages 205-215, September.
    13. Soetanto, Danny, 2019. "Examining change in entrepreneurial networks: Using visualisation as an alternative approach," European Management Journal, Elsevier, vol. 37(2), pages 139-150.
    14. Ronald S. Burt, 2019. "Network Disadvantaged Entrepreneurs: Density, Hierarchy, and Success in China and the West," Entrepreneurship Theory and Practice, , vol. 43(1), pages 19-50, January.
    15. Salih Zeki Ozdemir & Peter Moran & Xing Zhong & Martin J. Bliemel, 2016. "Reaching and Acquiring Valuable Resources: The Entrepreneur's Use of Brokerage, Cohesion, and Embeddedness," Entrepreneurship Theory and Practice, , vol. 40(1), pages 49-79, January.
    16. Lechner, Christian & Dowling, Michael & Welpe, Isabell, 2006. "Firm networks and firm development: The role of the relational mix," Journal of Business Venturing, Elsevier, vol. 21(4), pages 514-540, July.
    17. Lavlu Mozumdar & Geoffrey Hagelaar & Valentina C. Materia & S. W. F. Omta & Mohammad Amirul Islam & Gerben Velde, 2019. "Embeddedness or Over-Embeddedness? Women Entrepreneurs’ Networks and Their Influence on Business Performance," The European Journal of Development Research, Palgrave Macmillan;European Association of Development Research and Training Institutes (EADI), vol. 31(5), pages 1449-1469, December.
    18. Bernard Dussuc & Sébastien Geindre, 2012. "Capital social, théorie des réseaux sociaux et recherche en PME : une revue de la littérature," Post-Print halshs-00747912, HAL.
    19. Simone Santoni & Paolo Ferri & Maria Lusiani, 2013. "Novelty Conduits and Forms of Network Ties: To Bond or to Bridge?," Working Papers 34, Venice School of Management - Department of Management, Università Ca' Foscari Venezia.
    20. Diane M. Sullivan & Cameron M. Ford, 2014. "How Entrepreneurs use Networks to Address Changing Resource Requirements during Early Venture Development," Entrepreneurship Theory and Practice, , vol. 38(3), pages 551-574, May.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:sae:entthe:v:38:y:2014:i:3:p:501-525. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: SAGE Publications (email available below). General contact details of provider: .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.