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论文类型：期刊论文

发表时间：2014-12-01

发表刊物：PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS

收录刊物：SCIE、EI、Scopus

卷号：415

页面范围：421-427

ISSN号：0378-4371

关键字：Spatial evolutionary game; Bounded rationality; Social orientation; Fractal

摘要：Social factors, such as public opinion, values, ethics, moral standards, could guide people's behavior to some degree. In this paper, we introduce social orientation as a motivator factor into the Nowak model, and discuss the variation of cooperation proportion under the function of motivator factor and betrayal temptation. Results show that motivator factors can promote cooperation proportion, and there is a motivator factor threshold. And a jump point is present in the value, on each side of which cooperation proportion has a small change. Reduction of betrayal temptation can also promote cooperation proportion, and there is a betrayal temptation threshold. And the value is corresponding with a jump point. And cooperation proportion changes very little on each side of the value. In addition, when betrayal temptation and motivator factor both play a role in a system, there are always cooperators and defectors in coexistence. (C) 2014 Elsevier B.V. All rights reserved.