On the Interaction between Heterogeneity and Decay in Two-way Flow Models
In this paper we examine the role played by heterogeneity in the popular “connections model” of Jackson and Wolinsky (1996). We prove that under heterogeneity in values or decay involving only two degrees of freedom, all networks can supported as Nash. Moreover, we show that Nash networks may not always exist. In the absence of decay, neither result can be found in a model with value heterogeneity. Finally, we show that on reducing heterogeneity, both the earlier “anything goes” result and the non-existence problem disappear.
|Date of creation:||2011|
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- Sudipta Sarangi & Hans Haller & Jurjen Kamphorst, .
"(Non-)Existence and Scope of Nash Networks,"
Departmental Working Papers
2005-14, Department of Economics, Louisiana State University.
- Matthew O. Jackson & Asher Wolinsky, 1994.
"A Strategic Model of Social and Economic Networks,"
1098, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Galeotti, Andrea & Goyal, Sanjeev & Kamphorst, Jurjen, 2003.
"Network Formation with Heterogeneous Players,"
Economics Discussion Papers
2996, University of Essex, Department of Economics.
- Hojman, Daniel A. & Szeidl, Adam, 2008. "Core and periphery in networks," Journal of Economic Theory, Elsevier, vol. 139(1), pages 295-309, March.
- Jackson, Matthew O., 1998.
"The Evolution of Social and Economic Networks,"
1044, California Institute of Technology, Division of the Humanities and Social Sciences.
- Venkatesh Bala & Sanjeev Goyal, 2000. "A Noncooperative Model of Network Formation," Econometrica, Econometric Society, vol. 68(5), pages 1181-1230, September.
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