Social exchange theory


Social exchange theory is a sociological and psychological theory that explains how people behave in relationships by using cost-benefit analysis to determine risks and benefits, expecting that what they give will lead to a fair return, and treating social relationships like economic exchanges in which each person controls things the other values and decides whether to continue the relationship based on how beneficial and fair the exchange feels over time. Social exchange theory can be applied to a wide range of relationships, including romantic partnerships, friendships, family dynamics, professional relationships and other social exchanges. An example can be as simple as exchanging words with a customer at the cash register. In each context individuals are thought to evaluate the rewards and costs that are associated with that particular relationship. This can influence decisions regarding maintaining, deepening or ending the interaction or relationship. The Social exchange theory suggests that people will typically end something if the costs outweigh the rewards, especially if their efforts are not returned.
The most comprehensive social exchange theories are those of the American social psychologists John W. Thibaut and Harold H. Kelley, the American sociologists George C. Homans, Peter M. Blau, Richard Marc Emerson, and Claude Lévi-Strauss. Homans defined social exchange as the exchange of activity, tangible or intangible, and more or less rewarding or costing 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.

Thibaut and Kelley

Thibaut and Kelley based their theory on small groups related with dyadic relationships. They used the reward-cost matrices from game theory and discovered some clues of individuals' interdependence such as the power of a party over each other, also known as the "correspondence" versus "noncorrespondence" of outcomes. Additionally, they suggest that an individual can unilaterally affect her or his own outcomes in a relationship through chosen behaviors. They could predict the possible course of a social interaction through the analysis of aspects of power in an encounter. They also experimented on how the outcomes received in a relationship could define a person's attractions to relationships.

Homans

The foundation of the social exchange theory was first introduced by George C. Homans in 1958 based on his work "Social Behavior as Exchange", where he applied principles of behavior psychology and sociology to social interactions. Homans expanded his research in 1961 through "elementary forms of social behavior. Homans based his theory on concepts that include equilibration, expectancy, and a distributive justice in dyadic exchanges. Using this framework, he explained how people interact in small groups, showing that the rewards that they get are usually based on how much effort and resources that they contribute. Homans summarized his system with three main propositions: success, stimulus and deprivation-satiation propositions, described below.
  1. Success proposition: When one finds they are rewarded for their actions, they tend to repeat the action.
  2. Stimulus proposition: The more often a particular stimulus has resulted in a reward in the past, the more likely it is that a person will respond to it.
  3. Deprivation–satiation proposition: The more often in the recent past a person has received a particular reward, the less valuable any further unit of that reward becomes.

    Blau

Blau's theory is very similar to Homans'. However, he uses more economics terms and it is based principally on emergent social structure in social exchange patterns in small groups. His theory analyzes the development of exchange theory in economics without emphasizing on the psychological assumptions. He contributed to the idea of distinguishing between social and economic exchanges and exchange and power. The goal of his theory was to identify complex and simple processes without ignoring emergent properties. Blau's utilitarian focus encouraged the theorist to look forward, as in what they anticipated the reward would be in regards to their next social interaction. Blau felt that if individuals focused too much on the psychological concepts within the theory, they would refrain from learning the developing aspects of social exchange. Blau emphasized technical economic analysis whereas Homans concentrated more on the psychology of instrumental behavior.

Emerson

Emerson was inspired by Homans and Blau's ideas. He focused on the interaction and relationship between individuals and parties. His view of social exchange theory emphasizes the resource availability, power, and dependence as primary dynamics.  He thought that relations were organized in different manners, and they could differ depending on the type and amount of the resources exchanged. He poses the idea that power and dependence are the main aspects that define a relationship. According to Emerson, Exchange is not a theory, but a framework from which other theories can converge and be compared to structural functionalism. Emerson's perspective was similar to Blau's since they both focused on the relationship power had with the exchange process. Emerson says that social exchange theory is an approach in sociology that is described for simplicity as an economic analysis of noneconomic social situations. Exchange theory brings a quasi-economic form of analysis into those situations.

Lévi-Strauss

Strauss was a social exchange theorist in the context of anthropology. He 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. He based his kinship systems on Mauss's investigation. As it works in the form of indirect reciprocities, Levi-Strauss suggested the concept of generalized exchange.

Self-interest and interdependence

and interdependence are central properties of social exchange. These are the basic forms of interaction when two or more actors have something of value to each other, and they have to decide whether to exchange and in what amounts. Homans uses the concepts of individualism to explain exchange processes. To him, the meaning of individual self-interest is a combination of economic and psychological needs. Fulfilling self-interest is often common within the economic realm of the social exchange theory where competition and greed can be common. In social exchange, self-interest is not a negative thing; rather, when self-interest is recognized, it will act as the guiding force of interpersonal relationships for the advancement of both parties' self-interest"—Michael Roloff
Thibaut and Kelley see the mutual interdependence of persons as the central problem for the study of social behavior. They developed a theoretical framework based on the interdependence of actors. They also highlighted social implications of different forms of interdependence such as reciprocal control. According to their interdependence definition, outcomes are based on a combination of parties' efforts and mutual and complementary arrangements.

Basic concepts

Social exchange theory views exchange as a social behavior that may result both in economic and social outcomes. Social exchange theory has been generally analyzed by comparing human interactions with the marketplace. The study of the theory from the microeconomics perspective is attributed to Blau. Under his perspective every individual is trying to maximize his wins. Blau stated that once this concept is understood, it is possible to observe social exchanges everywhere, not only in market relations, but also in other social relations like friendship. Social exchange process brings satisfaction when people receive fair returns for their expenditures. The major difference between social and economic exchange is the nature of the exchange between parties. Neoclassic economic theory views the actor as dealing not with another actor but with a market and environmental parameters, such as market price. Unlike economic exchange, the elements of social exchange are quite varied and cannot be reduced to a single quantitative exchange rate. According to Stafford, social exchanges involve a connection with another person; involve trust and not legal obligations; are more flexible; and rarely involve explicit bargaining.

Cost and rewards

Simple social exchange models assume that rewards and costs drive relationship decisions. Both parties in a social exchange take responsibility for one another and depend on each other. The elements of relational life include:
Costs are the elements of relational life that have negative value to a person, such as the effort put into a relationship and the negatives of a partner.
Rewards are the elements of a relationship that have positive value.
As with everything dealing with the social exchange theory, it has as its outcome satisfaction and dependence of relationships. The social-exchange perspective argues that people calculate the overall worth of a particular relationship by subtracting its costs from the rewards it provides.
If worth is a positive number, it is a positive relationship. On the contrary, a negative number indicates a negative relationship. The worth of a relationship influences its outcome, or whether people will continue with a relationship or terminate it. Positive relationships are expected to endure, whereas negative relationships will probably terminate. In a mutually beneficial exchange, each party supplies the wants of the other party at lower cost to self than the value of the resources the other party provides. In such a model, mutual relationship satisfaction ensures relationship stability.
Homans based his theory on behaviorism to conclude that people pursue rewards to minimize costs. The "satisfactory-ness" of the rewards that a party gains from an exchange relationship is judged relative to some standard, which may vary from party to party.