抄録
The Olympic Paralympic games will be held for the 2nd time in Tokyo in 2020. For this aim, important sporting events have been planned nationwide. In recent years, large-scale sporting events having 10,000 participants have been held in Japan. The participants in these sporting events are supported by many sports volunteers. As a feature of this sport volunteer activity, the volunteer leaders and volunteers who participate are unacquainted, Furthermore, it is an organization in which people meet for the first time on the day of the event. In this study, such an organization is referred to as a short-term set type organization. In this organization, adjustments or arrangements between volunteer leaders and volunteer members cannot be made sufficiently in advance. Therefore, it is expected that there may be situations in which people may work without a set role and in which the work they do cannot be predicted beforehand. In accordance with the theory of organizational behavior in recent years, a study of OCB (Organization Citizenship Behavior) was done. Organ (1983) defined OCB as behavior which does not require formal job behavior, and for which an organizational structure member performs organization citizen behavior. It is also considered to be behavior which promotes the effective function of an organization. Since this study was based on the results of only one event (Daigo 2017) it is necessary to refer to use research from previous studies. A questionnaire was distributed to a total of 650 leaders and volunteers, and they were directly returned to the researcher. As the result of analysis, it became clear that organization citizen behavior increased as the leaders gave supportive leadership to the volunteer individuals.
