Search results for "opinion formation"
showing 4 items of 4 documents
PageRank model of opinion formation on Ulam networks
2013
We consider a PageRank model of opinion formation on Ulam networks, generated by the intermittency map and the typical Chirikov map. The Ulam networks generated by these maps have certain similarities with such scale-free networks as the World Wide Web (WWW), showing an algebraic decay of the PageRank probability. We find that the opinion formation process on Ulam networks have certain similarities but also distinct features comparing to the WWW. We attribute these distinctions to internal differences in network structure of the Ulam and WWW networks. We also analyze the process of opinion formation in the frame of generalized Sznajd model which protects opinion of small communities.
EU Experts’ Attitude Towards Use of GMO in Food and Feed and Other Industries
2014
Abstract This article examines European Union (EU) experts’ attitude towards use of genetically modified organisms (GMO) in food, feed and other industries with an eye to developing a general model of EU experts’ opinion formation in this area. The gene engineering has seen rapid advances in recent years with a host of new applications in medicine, agriculture, and related fields. Taking into account the history of consumption, social, economic, cultural and other aspects and the risk perception in general regarding these products the consumers’ willingness to buy genetically modified (GM) products varies from country to country as well as attitude of the experts involved in the decision ma…
ON THE EXISTENCE OF LIMIT CYCLES IN OPINION FORMATION PROCESSES UNDER TIME PERIODIC INFLUENCE OF PERSUADERS
2008
This paper concerns a model of opinion formation in a population of interacting individuals under the influence of external leaders or persuaders, which act in a time periodic fashion. The model is formulated within a general framework inspired to a discrete generalized kinetic approach, which has been developed in Ref. 6. It is expressed by a system of non-autonomous nonlinear ordinary differential equations. The dynamics of such a system is investigated and the existence of a globally asymptotically stable periodic solution is analytically proved in three example cases, each one corresponding to a different quantitative choice of the actions of the persuaders. Equivalently, in three part…
How perceptions of immigrants trigger feelings of economic and cultural threats in two welfare states
2017
Better understanding of attitudes toward immigration is crucial to avoid misperception of immigration in the public debate. Through two identical online survey experiments applying morphed faces of non-Western immigrants and textual vignettes, the authors manipulate complexion, education, family background, and gender in Denmark and Germany. For women, an additional split in which half of the women wore a headscarf is performed. In both countries, highly skilled immigrants are preferred to low-skilled immigrants. Danes are more skeptical toward non-Western immigration than Germans. Essentially, less educated Danes are very critical of accepting non-Western immigrants in their country. It i…