Social exchange theory and the cost-benefit analysis in relationships

Social exchange theory, proposed by Thibaut and Kelley in 1959, offers a perspective on how individuals approach romantic relationships. It suggests that people aim to gain the most benefits while keeping drawbacks to a minimum.

Core principles of social exchange theory

• Maximising rewards - Individuals seek to gain positive outcomes from relationships, such as emotional support, companionship, or boosted self-worth.
• Minimising costs - At the same time, people try to reduce negatives like time commitment, emotional stress, or effort required.
• Profit motive - For a relationship to continue, the benefits should outweigh the drawbacks, resulting in a net positive outcome.
• Potential inequality - This focus on personal gain can lead to unbalanced relationships if both partners prioritise receiving over giving.

Limitations of social exchange theory

What constitutes a reward or a cost varies widely between individuals, making it challenging to measure or predict outcomes universally.

Equity theory and the importance of balance in relationships

Equity theory builds on the idea of fairness, proposing that romantic relationships thrive when there is a sense of balance between what each partner contributes and receives. This theory highlights the discomfort caused by perceived inequity.

Key aspects of equity theory

• Desire for fairness - Partners expect to gain rewards proportional to what they invest in the relationship.
• Distress from imbalance - An unequal relationship causes dissatisfaction for both individuals, whether they are giving too much (under-benefited) or receiving too much (over-benefited).
• Efforts to restore balance - The partner who feels disadvantaged may take steps to correct the imbalance if they believe it's achievable.

Research supporting equity theory

• Hatfield et al. (1979) study:

  • Method - Newly married couples were asked to evaluate their own and their partner's contributions to the marriage, alongside their contentment levels.
  • Results - Those who felt under-benefited (giving more) were the least satisfied, followed by over-benefited individuals (possibly due to guilt). Couples in equitable relationships reported the highest satisfaction.
  • Conclusions - Fairness in contributions significantly impacts relationship happiness.
  • Evaluation - The study provides strong evidence for equity theory but relies on self-reported data, which may be biased.

• Argyle, 1988) - Found that men who were over-benefited felt nearly as content as those in balanced marriages, while over-benefited women showed much lower satisfaction compared to women in equitable relationships.

The investment model and factors influencing commitment

Developed by Rusbult in 1980, the investment model focuses on what keeps relationships stable over time. It identifies commitment as the central factor, influenced by specific elements that determine whether partners stay together.

Components of the investment model

• Satisfaction level - Reflects how well the relationship meets an individual's emotional and practical needs.
• Comparison with alternatives - Involves assessing whether needs could be better met in a different relationship or by being single.
• Investment size - Represents the resources put into the relationship, including time, emotional energy, and shared experiences.

Research evidence for the investment model - Le and Agnew (2003) meta-analysis

• Method - Reviewed 52 studies with a total of 11,582 participants to explore links between commitment and the model's components.
• Results - Found a strong positive correlation between commitment and satisfaction, investment, and lower quality of alternatives. Commitment also reliably predicted whether individuals remained in their relationships.

Critiques of the investment model

• Complexity overlooked - Some argue the model simplifies the intricate nature of relationships.
• Cultural and gender factors - The model does not account for how societal norms or gender expectations might shape perceptions of satisfaction or alternatives.

Duck's phase model of relationship breakdown

Duck's phase model, introduced in 1988, describes the process of ending an intimate relationship through a series of distinct stages. It provides a framework for understanding how break-ups unfold over time.

Stages of relationship dissolution

1. Intra-psychic phase - This initial stage occurs internally within one partner, who begins to feel dissatisfied with the relationship but has not yet communicated this to the other.
2. Dyadic phase - The dissatisfaction is shared with the partner, initiating discussions or conflicts about the state of the relationship.
3. Social phase - The break-up becomes public as friends and family are informed. This stage may involve discussions about practical matters (like child care) and offers a chance for reconciliation through external support.
4. Grave-dressing phase - The final stage involves both ex-partners reorganising their lives separately, crafting personal narratives about the break-up and defining their post-relationship dynamic.

Additional insights on relationship breakdown

• Threshold transitions - Each phase progresses to the next when a critical point is reached, such as when dissatisfaction is voiced, moving from intra-psychic to dyadic.
• Active vs. passive roles (Rusbult and Zembrodt, 1983) - Some individuals actively drive the break-up process to resolve issues or hasten the end, while others remain passive, hoping for natural resolution.
• Emotional impact (Akert, 1992) - Those initiating the break-up tend to experience less emotional distress and fewer physical symptoms (like sleep loss) compared to those on the receiving end.

Limitations of Duck's phase model

• Descriptive nature - The model outlines how break-ups happen but does not explain underlying reasons for relationship failure.
• Individual differences ignored - It fails to consider personal variations in how people handle break-ups.
• Cultural oversight - The model does not address how cultural norms might influence the process of relationship dissolution.
• Complexity underrepresented - Research suggests that break-ups can be more intricate than a linear four-stage process implies.