information:filtering
Power dependence relations

Several definitions of power have been offered by exchange theorists. For instance, some theorists view power as distinct from exchanges, some view it as a kind of exchange and others believe power is a medium of exchange. However, the most useful definition of power is that proposed by Emerson, who developed a theory of power-dependence relations. According to this theory, the dependence a person has on another brings up the concept of power. Power differentiation affects social structures by causing inequalities between members of different groups, such as an individual having superiority over another. Power within the theory is governed by two variables : the structure of power in exchange networks and strategic use. Experimental data show that the position an actor occupies in a social exchange network determines relative dependence and therefore power.