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Stochastic Sznajd Model in open community

Research output: Contribution to journalArticleScientificpeer-review


Original languageEnglish
Pages (from-to)1693-1699
Number of pages7
JournalInternational Journal of Modern Physics C
Issue number11
Publication statusPublished - Nov 2005
Externally publishedYes
Publication typeA1 Journal article-refereed


We extend the Sznajd Model for opinion formation by introducing persuasion probabilities for opinions. Moreover, we couple the system to an environment which mimics the application of the opinion. This results in a feedback, representing single-state opinion transitions in opposite to the two-state opinion transitions for persuading other people. We call this model opinion formation in an open community (OFOC). It can be seen as a stochastic extension of the Sznajd model for an open community, because it allows for a special choice of parameters to recover the original Sznajd model. We demonstrate the effect of feedback in the OFOC model by applying it to a, scenario in which, e.g., opinion B is worse then opinion A but easier explained to other people. Casually formulated we analyzed the question, how much better one has to be, in order to persuade other people, provided the opinion is worse. Our results reveal a linear relation between the transition probability for opinion B and the influence of the environment on B.


  • Markov process, Monte Carlo simulation, Small-world network, Sznajd Model