6.17
社会交換理論
ジョン・ティボーおよびハロルド・ケリーによって提唱された社会交換理論は、人間関係を「報酬の最大化」と「コストの最小化」を志向する交換行動として捉える理論枠組みです。この理論では、個人が経済取引に類似した意思決定を通じて、利益を得つつ負担を軽減することを目的として対人関係を構築・維持すると考えられてい…
社会交換理論は、個人が満足度と安定性を高めるために報酬を最大化し、コストを最小限に抑えることを目指す経済的観点から人間関係を見ます。
人間関係は愛、サポート、親密さなどの報酬を提供しますが、維持努力、対立、妥協、機会の犠牲などのコストが伴います。
比較レベルまたはCLは、個人が関係において何を受け取り、貢献すべきだと信じているかの基準です。
CLが高いと期待が高くなり、CLが低いと期待が低くなります。満足感は、期待が満たされたり、それを超えたりしたときに生じます。満たされない期待は不満を引き起こします。
同様に、代替またはCLaltの比較レベルは、個人が代替関係を追求することで得られると信じている報酬を指します。
CLaltは、満足度ではなく、関係の安定性を測定します。それは、人が関係を維持する可能性を予測します。
最後に、投資には、個人が関係に貢献しているが、関係が終わったら回復できない時間、労力、犠牲が含まれます。
投資が増えるとコミットメントは強化されますが、個人は虐待的な関係に閉じ込められていると感じます。
View the full transcript and gain access to JoVE Core videos
Q1: How does social exchange theory explain relationship satisfaction?
Social exchange theory views satisfaction as arising when relationship rewards exceed costs and meet or exceed expectations. Rewards include love, support, and intimacy, while costs involve maintenance efforts, conflicts, and compromises. The comparison level (CL) represents the standard of what individuals believe they should receive and contribute. When actual rewards meet or exceed this personal benchmark, satisfaction increases; unmet expectations cause dissatisfaction.
Q2: What is the comparison level for alternatives and why does it matter?
The comparison level for alternatives (CLalt) refers to the rewards an individual believes are available through pursuing alternative relationships. Unlike the comparison level, which predicts satisfaction, CLalt measures relationship stability and predicts whether a person will remain in a relationship. If someone believes better alternatives exist, they may consider ending their current relationship to pursue a more rewarding option.
Q3: How do investments affect commitment and relationship persistence?
Investment includes time, effort, and sacrifices that individuals contribute to a relationship but cannot recover if it ends. Greater investment strengthens commitment and relationship persistence, as individuals anticipate long-term benefits despite short-term challenges. However, high investment can also trap people in unhealthy relationships, making it harder to leave even when satisfaction declines or conflicts arise.
Q4: What are the main rewards and costs in relationships according to social exchange theory?
Relationship rewards include emotional support, companionship, validation, and shared experiences that contribute positively to well-being. Costs involve emotional strain, conflict, compromise, and time investment, all of which negatively influence perception of the relationship. People continually assess whether rewards outweigh costs to decide whether maintaining the relationship is worthwhile and satisfying.
Q5: Why does social exchange theory have limitations in explaining human relationships?
Social exchange theory assumes individuals make decisions purely based on rational cost-benefit analyses, overlooking emotions, altruism, and social responsibility. Human relationships are complex and often guided by more than economic calculations. While the theory offers valuable insights into relationship dynamics and supports better decision-making in personal and professional contexts, it cannot fully account for the emotional and social dimensions that drive relationship choices.
Q6: How does social exchange theory apply beyond romantic relationships?
Social exchange theory extends to professional environments, friendships, and collaborations, where individuals evaluate rewards and costs in all types of relationships. In today's society, social media amplifies its relevance, as people often compare their relationships and social standing through online interactions. The theory's framework helps explain decision-making across diverse relationship contexts.
Q7: What role does comparison level play in determining relationship value?
The comparison level (CL) serves as a personal benchmark shaped by past experiences, cultural expectations, and personal desires. A high CL leads to higher expectations, while a low CL results in lower ones. Relationship value is evaluated against this standard; when rewards exceed the CL threshold, the relationship is perceived as satisfying and valuable to the individual.