Charoensook, Banchongsan (2012): Network Formation with Productivity as Decay.
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This paper develops a model of noncooperative network formation. Link formation is two-sided. Information flow is two-way. The paper is built upon Bala and Goyal. A unique assumption is that the value of information decays as it flows through each agent, and the decay is increasing and concave in the number of his links. Thus, an agent may choose to avoid accessing an agent who possess many links since he is aware of the decay incurred through this agent. This avoidance leads to two particular results in the analysis of Nash networks: (1) Nash networks are not always connected; (2) Nash networks do not exist under some parameters. Since disconnectedness is reminiscent of a common feature of real-world network, the model may explain why real-world networks may exhibit this feature even when there is no heterogeneity among agents. Discussion on this insight is provided.
|Item Type:||MPRA Paper|
|Original Title:||Network Formation with Productivity as Decay|
|Keywords:||Social Networks; Game Theory; Network Formation|
|Subjects:||Z - Other Special Topics > Z1 - Cultural Economics ; Economic Sociology ; Economic Anthropology > Z13 - Economic Sociology ; Economic Anthropology ; Social and Economic Stratification
D - Microeconomics > D8 - Information, Knowledge, and Uncertainty > D85 - Network Formation and Analysis: Theory
C - Mathematical and Quantitative Methods > C7 - Game Theory and Bargaining Theory > C72 - Noncooperative Games
|Depositing User:||Banchongsan Charoensook|
|Date Deposited:||05. Mar 2012 10:09|
|Last Modified:||13. Feb 2013 04:24|
BALA, V., AND S. GOYAL (2000): “A Noncooperative Model of Network Formation,” Econometrica, 68(5), 1181–1230.
CAFFARELLI, F. (2009): “Networks with decreasing returns to linking,” Economics Working Papers ECO2004/18, Bank of Italy.
ENNETT, S., AND K. BAUMAN (2000): Increasing Prevention Effectivenesschap. Adolescent Social Networks: Friendship Cliques, Social Isolates, and Drug Use Risk, pp. 83 – 92. Tanglewood Research, Inc.
FERI, F., AND M. A. MELENDEZ-JIMENEZ (2009): “Coordination in Evolving Networks with Endogenous Decay,”Working Papers 2009-19, Faculty of Economics and Statistics, University of Innsbruck.
JACKSON, M. (2007): The Missing Links: Formation and Decay of Economic Networkschap. 2: The Study of Social Networks in Economics, pp. 19–40. Russell Sage Foundation.
JACKSON., M., AND A. WOLINSKY (1996): “A Strategic Model of Social and Economic Networks,” Journal of Economic Theory, 71(1), 44–74.
JAEGHER, K. D., AND J. KAMPHORST (2008): “Network formation with decreasing marginal beneﬁts of information,” Working Papers 08-16, Utrecht School of Economics.
R. KUMAR, J. N., AND A. TOMKINS (2010): Link Mining: Models, Algorithms, and Applications. chap. Structure and Evolution of Online Social Networks, pp. 611 - 617. Springer
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A noncooperative model of network formation with decreasing productivity. (deposited 02. Mar 2012 20:17)
- Network Formation with Productivity as Decay. (deposited 05. Mar 2012 10:09) [Currently Displayed]