Lines of power in exchange networks

Network exchange theory (NET) predicts differences in the resource accumula tions of positions in interconnected groups of actors. The theory distingui shes between two types of networks-strong and weak power. To date only a fe w studies have tested the theory under weak power conditions. In the presen t research we investigate six line networks that contain elements of both s trong and weak power. Line networks have been particularly, important in th eories of social exchange and the importance of linear exchange is frequent ly reflected in natural settings. Four of the investigated lines are longer than any previously studied. We introduce new experimental features design ed to minimize extraneous factors, thereby optimizing the translation of st ructural power differences into observable profit differentials. Results ge nerally support the idea that longer lines may contain elements of both str ong and weak power. Most notably, while positions identified as high strong power do obtain approximately 70% or more of resources, there is evidence that a nonzero likelihood of exclusion in the central position of the 7-lin e may decrease its power.