ASNAC2020で発表を行います

2020年11月25日～27日にかけて開催されるThe 5th Australian Social Network Analysis Conference (ASNAC 2020) (Web開催) で以下の発表を行います。

Oral Presentation

Chen, J. & Igarashi, T. (2020). Overcoming choice homophily under wealth disparities in dynamic social networks. Paper presented at the 5th Australian Social Network Analysis Conference (Virtual conference).

How people can overcome choice homophily based on initial wealth disparities, which aggravates inequality and segregation in social networks (DiMaggio & Garip, 2012; Nishi et al., 2015), is one of the central questions to be resolved in the world. The current research examined whether information about partner’s cooperativeness is more critical in partner selection than the similarity of the amount of resources between the self and partners. We conducted an iterated public goods game (PGG) in which participants were assigned to a rich group and privileged to choose rich or poor partners (programmed bots) at each round. When partners’ cooperativeness was not presented, participants showed a strong preference for the choice of rich partners. However, when both initial endowments and last round contribution ratio of potential partners (cooperative or selfish) were presented, participants tended to choose partners based more on their cooperativeness than on their initial endowments. Also, participants who chose the cooperative poor and shared their resources with them in advance of PGG increased the amount of investment in the main PGG. The current findings suggest possible ways to promote the formation of productive rich-poor ties by letting people know about the goodness of potential partners and by implementing the micro-investment system to produce better outcomes in future joint activities.