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Inefficiencies in a model of spatial networks formation with positive externalities

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  • Carayol, Nicolas
  • Roux, Pascale
  • YIldIzoGlu, Murat

Abstract

In this paper, we make an exploratory use of computational techniques (genetic algorithms and Monte Carlo simulations) to compute efficient and emergent networks in a spatialized version of the connections model of Jackson and Wolinski [Jackson, M.O., Wolinski, A., 1996. A strategic model of social and economic networks. Journal of Economic Theory 71, 44-74]. This approach allows us to observe and discuss inefficiencies that arise in a strategic network formation context with imperfectly link-mediated positive externalities to connections and spatial link costs. Our results highlight that, depending on the strength of the externalities, emergent and efficient networks may share several structural properties. Nevertheless, emergent networks are insufficiently dense and should be more structured around central agents.

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  • Carayol, Nicolas & Roux, Pascale & YIldIzoGlu, Murat, 2008. "Inefficiencies in a model of spatial networks formation with positive externalities," Journal of Economic Behavior & Organization, Elsevier, vol. 67(2), pages 495-511, August.
    • Handle: RePEc:eee:jeborg:v:67:y:2008:i:2:p:495-511
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    1. Nicolas Carayol & Pascale Roux & Murat Yıldızoğlu, 2008. "In search of efficient network structures: the needle in the haystack," Review of Economic Design, Springer;Society for Economic Design, vol. 11(4), pages 339-359, February.
    2. Mikaela Backman & Charlie Karlsson, 2016. "Determinants of self-employment among commuters and non-commuters," Papers in Regional Science, Wiley Blackwell, vol. 95(4), pages 755-774, November.
    3. Mauro Napoletano & Stefano Battiston & Michael D König & Frank Schweitzer, 2008. "The efficiency and evolution of R&D Networks," Working Papers hal-01066189, HAL.
    4. repec:spo:wpmain:info:hdl:2441/9935 is not listed on IDEAS
    5. Vitali, Stefania & Battiston, Stefano & Gallegati, Mauro, 2016. "Financial fragility and distress propagation in a network of regions," Journal of Economic Dynamics and Control, Elsevier, vol. 62(C), pages 56-75.
    6. repec:hal:spmain:info:hdl:2441/9935 is not listed on IDEAS
    7. G. Fagiolo & A. Roventini, 2009. "On the Scientific Status of Economic Policy: A Tale of Alternative Paradigms," Voprosy Ekonomiki, NP Voprosy Ekonomiki, issue 6.
    8. Antoine Mandel & Van-Quy Nguyen & Bach Dong-Xuan, 2024. "Strategic formation of production networks," Papers 2401.08929, arXiv.org.
    9. repec:hal:wpspec:info:hdl:2441/9935 is not listed on IDEAS
    10. repec:spo:wpecon:info:hdl:2441/9935 is not listed on IDEAS
    11. Christian Ghiglino & Antonella Nocco, 2017. "When Veblen meets Krugman: social network and city dynamics," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 63(2), pages 431-470, February.
    12. König, Michael D. & Battiston, S. & Napoletano, M. & Schweitzer, F., 2011. "Recombinant knowledge and the evolution of innovation networks," Journal of Economic Behavior & Organization, Elsevier, vol. 79(3), pages 145-164, August.
    13. Tur, Elena M. & Azagra-Caro, Joaquín M., 2018. "The coevolution of endogenous knowledge networks and knowledge creation," Journal of Economic Behavior & Organization, Elsevier, vol. 145(C), pages 424-434.
    14. Corinne Autant-Bernard & Pascal Billand & Nadine Massard, 2012. "Innovation and Space – From Externalities to Networks," Chapters, in: Charlie Karlsson & Börje Johansson & Roger R. Stough (ed.), The Regional Economics of Knowledge and Talent, chapter 3, Edward Elgar Publishing.
    15. repec:hal:wpspec:info:hdl:2441/7346 is not listed on IDEAS
    16. repec:spo:wpmain:info:hdl:2441/7346 is not listed on IDEAS
    17. repec:hal:spmain:info:hdl:2441/7346 is not listed on IDEAS
    18. Mikaela Backman & Maureen Kilkenny, 2014. "Diversified experience, benefits to the individual and the firm," ERSA conference papers ersa14p18, European Regional Science Association.
    19. repec:spo:wpecon:info:hdl:2441/7346 is not listed on IDEAS

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