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Conference Participation and Co-authorship in Regional Science: A Network Approach

Conference Participation and Co-authorship in Regional Science: A Network Approach. J ö nk ö ping International Business School J ö nk ö ping, Sweden, February 10, 2006. Jouke van Dijk University of Groningen Faculty of Spatial Sciences The Netherlands Gunther Maier

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Conference Participation and Co-authorship in Regional Science: A Network Approach

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  1. Conference Participation andCo-authorship in Regional Science:A Network Approach JönköpingInternational Business School Jönköping, Sweden, February 10, 2006 Jouke van Dijk University of Groningen Faculty of Spatial Sciences The Netherlands Gunther Maier Wirtschaftsuniversität Wien Abteilung für Stadt- und Regionalentwicklung Austria

  2. The Networks of ERSAEuropean Regional Science Association • Introduction • Theory and methods • Conference participation • participants, one time - repeated • role of distance • Co-authorship • by country • by city • by person

  3. Introduction • „Networking“, „clusters“, „agglomeration effects“ are today‘s catchwords in Regional Science • To what extent do regional scientists network? What are their networks? • Conference participation - co-authorship • Academic interest - organizational interest • Spatial dimension • Centers of Regional Science in Europe?

  4. Spatial distributions of publications in Papers in Regional Science 1995-2003

  5. Spatial distributions of publications in Papers in Regional Science 1955-1964

  6. Spatial dimension of authors in Regional Science

  7. The dataset • CD-ROMs of ERSA-congresses 1998-2003 • Information about city/country from conf-vienna databases

  8. Conference participation

  9. Repeated participants

  10. Participants vs. participations

  11. Participations by country

  12. The role of distance

  13. The role of distance / Logit results

  14. Co-authorship: theory and methods Co-authorship • increasing number of co-authored publications • pro: specialization, synergy, output effect (# of publications), consumption effect • contra: compromize on text, transaction costs, free riding

  15. Spatial dimension of co-authorship • Little information • Laband and Tollison (2000): working at different locations - increasing over time, females more likely to participate in teamwork, but less likely to co-operate with different locations • more co-authorship in Regional Science / Economic Geography? Not confirmed for JEL 900

  16. Social network analysis • Technique to identify, analyze, measure and graph networks • Based on graph theory (nodes, links) • New software (Ucinet, Netdraw, Pajek) allows for visualization and interaction

  17. Goals of social network analysis • „The main goal of social network analysis is detecting and interpreting patterns of social relations between actors.“ (de Nooy/Mrvar/Batagelj, 2004, S. 5) • The most basic unit of analysis in social network analysis is the dyade, the relation between two actors.

  18. What is a network? • Actors • Relations • Sociogram • Interaction matrix

  19. Graph theory • Nodes • Directed vs. non-directed ties • Binary vs. valued data • Tie strength • Distance

  20. Centrality / Centralization • Degree Centrality: number of contacts • Closeness Centrality: distance to all others • Betweenness Centrality: number of connections via me Star network Line network Circle network

  21. Papers 1657 one more Authors 735 922 one more Cities 620 302 one more Countries 183 119 Analysis of co-authorship • The role of distance in collaboration

  22. Analysis of co-authorship

  23. Co-authorship networks • Networks of countries • Networks of cities • Networks of people

  24. Co-authorship networks / country • 52 countries in database, 37 connected, 15 isolates • (Argentina, Egypt, Estonia, Czech Republic, Hungary, Indonesia, India, Latvia, Lithuania, Slovakia, Luxembourg, Morocco, South Africa, Taiwan and Ukraine) • 2 components • Canada, Croatia, Slovenia • 34 other connected countries

  25. Co-authorship networks / country

  26. Co-authorship networks / city • 429 cities in dataset, 271 connected, 158 isolates • 46 components, 31 connecting only two cities

  27. Cities - core component

  28. Cities - smaller networks

  29. Co-authorship networks / authors

  30. Co-authorship networks / authors • 1459 authors in the database • 396 components, almost half link only 2 authors, largest component links 91 authors. • 243 components (61%) link only authors from one city • 330 (83%) link only authors from one country

  31. The Dutch network

  32. The Barcelona network

  33. The Swiss network

  34. The Scandinavian network

  35. Other significant components

  36. The role of distance

  37. Summary and conclusions • Centers of Regional Science in Europe: • differs between countries, cities, persons • countries: UK, GM, IT, SP, NL - US • cities: Amsterdam, Rome, Milano, Nuremberg, Barcelona, London - Sao Paulo • persons: different networks with different structures - 1 / 2 central figures, core team • Future research: from descriptive to statistical analysis of the networks

  38. Co-authorship in Regional Science:A Network Approach Jouke van Dijk University of Groningen Faculty of Spatial Sciences www.joukevandijk.nl Gunther Maier Wirtschaftsuniversität Wien Abteilung für Stadt- und Regionalentwicklung

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