Cooperation is an important discourse of our time. In discussing cooperation, the
emphasis on the structure of the organization has not received much attention as to the
characteristics of the agency. The emphasis on the agency is to find that the structure can
vary by personality even if it is not sustainable. In particular, discussions about individual
self-monitoring propensities suggest the rationale for considering individual characteristics in
social cooperation. This study analyzes the process of solving a common problem through
the formation of friendship of students in the liberal arts course of university. The purpose
of this study is to examine the mediating effects of social capital in explaining the effects
of self-monitoring behavior on problem solving. The results of this study suggest that
individual self-monitoring tendency promotes bridging social capital formation and affects
troublesome problem solving, but mediated effect of bridging social capital does not
appear. On the other hand, the self-monitoring tendency of the group showed that it
facilitated formation of bonding social capital and affects troublesome problem solving
through formation of social capital. In addition, self-monitoring tendency of individuals
contributes to formation of bonding social capital and affects troublesome problem solving
through it. In order to empathize with these results, it is necessary to relieve self-emotions.
Therefore, a person with a high self-monitoring tendency possesses the ability to control
his/her expressive behavior in accordance with situational conditions. This can be
interpreted as the formation of social capital that helps communication and interaction
among team members through self-emotional abstinence. The results of this study are
meaningful in terms of showing the mechanism of team members 'effort and time
investment in solving group tasks through the formation of social capital even if the team's
existence is not continuous.