Question: who came up with the social exchange theory

title: Social exchange theory
text: Social exchange theory goes back to Thibaut and Kelley ( 1959 ) , Kelley and Thibaut ( 1978 ) , Homans ( 1961 ) and Rusbult ( 1983 ) . Sociologist George Homans published a work `` Social Behavior as Exchange '' . He defined social exchange as the exchange of activity , tangible or intangible , and more or less rewarding or costly , between at least two persons . After Homans founded the theory , other theorists continued to write about it , particularly Peter M. Blau and Richard M. Emerson , who in addition to Homans are generally thought of as the major developers of the exchange perspective within sociology . Homans ' work emphasized the individual behavior of actors in interaction with one another . Although there are various modes of exchange , Homans centered his studies on dyadic exchange . John Thibaut and Harold Kelley are recognized for focusing their studies within the theory on the psychological concepts , the dyad and small group . Lévi - Strauss is recognized for contributing to the emergence of this theoretical perspective from his work on anthropology focused on systems of generalized exchange , such as kinship systems and gift exchange . 

Answer: answer: Sociologist George Homans founded the Social exchange theory and published a work "Social Behavior as Exchange."