Tractability and Phase Transitions in Endogenous Network Formation

Fuente: arXiv
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Main Author: Betancourt, Jose M.
Format: Preprint
Published: 2023
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author Betancourt, Jose M.
author_facet Betancourt, Jose M.
contents The dynamics of network formation are generally very complex, making the study of distributions over the space of networks often intractable. Under a condition called conservativeness, I show that the stationary distribution of a network formation process can be found in closed form, and is given by a Gibbs measure. For conservative processes, the stationary distribution of a certain class of models can be characterized for an arbitrarily large number of players. In this limit, the statistical properties of the model can exhibit phase transitions: discontinuous changes as a response to continuous changes in model parameters.
format Preprint
id arxiv_https___arxiv_org_abs_2310_10764
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Tractability and Phase Transitions in Endogenous Network Formation
Betancourt, Jose M.
Theoretical Economics
The dynamics of network formation are generally very complex, making the study of distributions over the space of networks often intractable. Under a condition called conservativeness, I show that the stationary distribution of a network formation process can be found in closed form, and is given by a Gibbs measure. For conservative processes, the stationary distribution of a certain class of models can be characterized for an arbitrarily large number of players. In this limit, the statistical properties of the model can exhibit phase transitions: discontinuous changes as a response to continuous changes in model parameters.
title Tractability and Phase Transitions in Endogenous Network Formation
topic Theoretical Economics
url https://arxiv.org/abs/2310.10764