nep-net New Economics Papers
on Network Economics
Issue of 2008‒11‒18
four papers chosen by
Yi-Nung Yang
Chung Yuan Christian University

  1. Follow the Leader: Simulations on a Dynamic Social Network By David Goldbaum
  2. Ties configuration in entrepreneurs’ personal network and economic performances in African urban informal economy By Jean-Philippe BERROU (GREThA UMR CNRS 5113); François COMBARNOUS (GREThA UMR CNRS 5113)
  3. Clusters as vehicles for entrepreneurial innovation and new idea generation : a critical assessment By Bahlmann, R.D.; Huysman, M.H.; Elfring, T.; Groenewegen, P.
  4. Inventors and the Geographical Breadth of Knowledge Spillovers By Giuri, Paola; Mariani, Myriam

  1. By: David Goldbaum (School of Finance and Economics, University of Technology, Sydney)
    Abstract: An agent based model is developed in which a social hierarchy of leaders and followers emerges from a uniform or random social network. The formation of the social structure is driven by the desire to be an early adopter of a subsequently popular trend. The environment is related to a majority game, but introduces the importance of the timing of adoption. The proposed environment is relevant to a number of settings in which leadership and timing of decisions are important or being perceived as a trend setter is rewarded. The leadership position can be selfreinforcing. For a professional critic, for example, a cult-of-personality can dictate popular tastes, such as in art, food, and wine markets. A social hierarchy can also apply to the introduction of new products or ideas including academic research and financial market analysts.
    Keywords: dynamic network; social interaction; consumer choice
    Date: 2008–10–01
    URL: http://d.repec.org/n?u=RePEc:uts:wpaper:155&r=net
  2. By: Jean-Philippe BERROU (GREThA UMR CNRS 5113); François COMBARNOUS (GREThA UMR CNRS 5113)
    Abstract: As to explore social networks influence in African informal economy, this paper fits in the conceptual framework of reticular embeddedness. By going into the analyse of ties strength, our purpose is to question the real influence of ties content. We use a recent original dataset to evaluate how entrepreneurs’ networks influence their activities economic outcomes. ‘Multiple name generators’ method provides a vast amount of information about ties content, which can be treated by factor analysis to describe and categorize networks. Finally, we show that not only business ties but the particular configuration of ties strength in networks improve informal earnings.
    Keywords: Informal economy ; embeddedness ; social networks ; informal earnings
    JEL: O17 Z13
    Date: 2008
    URL: http://d.repec.org/n?u=RePEc:grt:wpegrt:2008-25&r=net
  3. By: Bahlmann, R.D. (Vrije Universiteit Amsterdam, Faculteit der Economische Wetenschappen en Econometrie (Free University Amsterdam, Faculty of Economics Sciences, Business Administration and Economitrics); Huysman, M.H.; Elfring, T.; Groenewegen, P.
    Abstract: Recent theorizing in cluster literature emphasizes the importance of inter-cluster knowledge linkages in addition to local knowledge dynamics, enabling new and innovative ideas to flow from one cluster to the other. This paper contributes to this topic by studying inter-cluster knowledge linkages at an individual level of analysis, making use of qualitative social network measures. Central to this case is the Amsterdam New Media-cluster, with a special focus on entrepreneurs engaging in lively inter-cluster exchange of knowledge and debate, resulting in the exchange of new visions and ideas across cluster boundaries. The results reported in this paper provide us with an opportunity to discuss cluster boundaries as a social construction, especially in relation to the knowledge- based view of clusters.
    Keywords: inter-cluster knowledge linkages, entrepreneurship, Amsterdam New Media-cluster, Social networks
    Date: 2008
    URL: http://d.repec.org/n?u=RePEc:dgr:vuarem:2008-13&r=net
  4. By: Giuri, Paola; Mariani, Myriam
    Abstract: This paper studies the geographical breadth of knowledge spillovers. Previous research suggests that knowledge spillovers benefit from geographical proximity in technologically active and rich regions more than elsewhere. An alternative view explains the geographical breadth of knowledge spillovers as a function of the characteristics and personal networks of the individuals. We test these two competing theories by using information provided directly by the inventors of 6,750 European patents (PatVal-EU survey). Our results confirm the importance of inventors' personal background. However, compared to previous research, we find that the level of education of the inventors is key in shaping the geographical breadth of knowledge spillovers. Highly educated inventors rely more on geographically wide research networks than their less educated peers. This holds after controlling for the mobility of the inventors and for the scientific nature of the research performed. Differently, location matters only in the very rare regions in Europe that perform the bulk of the research in the specific discipline of the inventors.
    Keywords: education/geography/inventors/knowledge spillovers/patents
    Date: 2008
    URL: http://d.repec.org/n?u=RePEc:esr:wpaper:dynreg31&r=net

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