Promises Influence Trust And The Regulation Effect Of Group Identity

In recent years,with the rapid development of our society,people' s relationship changed gradually.From "when people fall,there is none to raise her up" to "meet someone in trouble,while no one helps",a variety of strange social phenomenon caused extensive concern of the public after media exposure.It's sure that the causes of these strange phenomenon are various,but the lack of interpersonal trust is one of the important influencing factors.In the area of people's trust,commitment and group identity has been an important factor.Therefore,to further study the influence of commitment on behavioral decision as well as the regulation effect of group identity in the trust game has important theoretical significance and practical value.In our study one,we used investment game and trust game to study the effect of promise on general trust,and whether this effect is influenced by gender differences,and risk preference and social value orientation from "quality" and"quantity" aspect.In our study two,we discussed the mutual influence of the social norms theory and the social identity theory on interpersonal trust,by manipulating commitment(reflect the role of social norms theory)and group identity(reflect the role of social identity theory).The results obtained are as follows:1.Promise can promote trust propensity and trust level,this effect has no gender difference,and was not influenced by risk preference and social value orientation.2.In the no promise condition,the effect of in-group preference exist;In the promise condition,the effect of in-group preference disappear.3.When the social norms theory and the social identity theory have a mutual influence on interpersonal trust,the social norms theory has the dominant effect.To sum up,Promise can significantly promote trust propensity and trust level,and this is not influenced by one's gender,risk preference and social value orientation;When the social norms theory and the social identity theory have a mutual influence on interpersonal trust,the social norms theory has the dominant effect.