What Is Power in Relationships - Definition and Measurement

'Power' in romantic relationships refers to one partner's ability to influence the other's behavior, thoughts, and emotions. Cromwell & Olson (1975) proposed a framework that captures power in relationships as a three-layer structure: 'power bases (sources of power),' 'power processes (the exercise of power),' and 'power outcomes (results of power exercise).' This framework is still widely referenced as a foundation for couple research today.

Measuring power is a complex challenge. Sprecher, Schmeeckle, & Felmlee (2006) developed a scale measuring power in relationships across three dimensions: 'decision-making authority,' 'emotional power (who needs the other more),' and 'conversational dominance.' The important point is that power is not a fixed attribute but something that fluctuates dynamically depending on situation and context. The concept of 'domain-specific power' - where one partner holds power in financial management while the other holds power in how weekends are spent - is emphasized in contemporary couple research.

Blood & Wolfe (1960)'s classic 'resource theory' explained that the partner who brings more resources (income, education, social status, etc.) to the relationship holds greater power. However, this theory has been criticized for overemphasizing economic resources and failing to adequately explain non-material power sources such as emotional resources and sexual attractiveness.

Sources of Power - Economic Resources, Attractiveness, and Information

French & Raven (1959)'s classification of social power is applicable to romantic relationships. Of the five power bases they proposed, three are particularly important in romantic relationships: 'reward power (the ability to provide rewards to the other),' 'expert power (superiority in knowledge or information),' and 'referent power (the attractiveness that makes the other want to identify with you).'

Economic power is the most visible power source. Research by Tichenor (2005) showed that in couples where the woman earns more than the man, conflicts with traditional gender norms are more likely to arise. The economically dominant partner does not necessarily hold power across the entire relationship - gender norms and cultural expectations complicate power distribution.

Physical attractiveness also functions as a power source. Research by Felmlee (1994) showed that asymmetry in attractiveness between partners is associated with relationship instability. In couples with large attractiveness gaps contrary to the 'matching hypothesis,' the less attractive partner tends to invest more effort in relationship maintenance, while the more attractive partner tends to hold greater decision-making authority.

Information power has taken on new importance in modern digital society. A new form of power asymmetry has emerged where the more tech-savvy partner manages the household's digital environment and controls access to information. Additionally, high emotional intelligence (EQ) functions as a form of information power, with the ability to read and manipulate others' emotions affecting power within the relationship.

Felmlee (1994)'s Research - Power Imbalance and Relationship Dissolution

Felmlee (1994) conducted an important longitudinal study focusing on power imbalance as a factor in romantic relationship dissolution. This study tracked over 300 dating couples and analyzed the relationship between perceptions of power balance and relationship persistence. The results clearly showed that couples where both perceived the relationship as 'equal' tended to last longer than couples where one was perceived as holding power.

Particularly interesting is the concept of 'fatal attraction.' Felmlee described the process by which traits found attractive in early dating (e.g., the partner's leadership, decisiveness) transform over time into negative perceptions of being 'domineering' or 'not listening to my opinions.' In other words, power asymmetry initially functions as attraction, but as the relationship deepens, it becomes a source of dissatisfaction.

The practical implications of this research are significant. When attracted to a partner's 'reliability' or 'leadership' in the early stages of a relationship, it is important to recognize that this may become problematic as power imbalance over the long term. In healthy relationships, the ideal state is 'fluid power' where power is not fixed in specific domains but moves flexibly according to the situation.

How Power Imbalance Affects Relationship Satisfaction

In a large-scale survey by Sprecher & Felmlee (1997), couples who perceived their power balance as equal showed higher scores in relationship satisfaction, commitment, and love compared to couples who felt imbalance. This effect was consistent regardless of gender - whether the man or the woman held power, the imbalance itself was the factor reducing satisfaction.

Research by Lennon, Stewart, & Ledermann (2013) analyzed in detail the impact of power imbalance on communication patterns. The lower-power partner tends to take the demanding role in the 'demand-withdraw pattern,' while the higher-power partner tends to withdraw (avoid discussion). When this asymmetric communication pattern becomes chronic, it leads to decreased relationship satisfaction and escalating conflict.

However, not all power imbalance is harmful. A meta-analysis by Karney & Bradbury (1995) showed that when both partners 'agree' on the current power distribution, relationship satisfaction is maintained even with objective imbalance. What becomes problematic is 'dissatisfaction' or 'sense of unfairness' regarding power distribution - role division based on mutual agreement is not necessarily harmful.

Big Five Traits and Power Dynamics - The Roles of Extraversion and Agreeableness

Personality traits significantly influence power dynamics between couples. Research by Friesen, Fletcher, & Overall (2005) showed that partners high in extraversion tend to acquire greater power within the relationship. High extraversion is associated with sociability, assertiveness, and high energy, and these traits translate into greater voice and influence in decision-making situations.

Agreeableness plays a complex role in power dynamics. People high in agreeableness tend to avoid conflict and yield to the other's opinions, making them more likely to be placed in a lower-power position within the relationship. However, research by Simpson, Winterheld, & Chen (2006) showed that high agreeableness does not necessarily mean a lack of power. Highly agreeable people tend to exercise 'soft power,' changing their partner's behavior not through direct confrontation but through indirect influence (emotional support, relationship maintenance behaviors). Related books can also be found at related books (Amazon).

People high in neuroticism react more sensitively to power imbalances. Even in minor decision-making situations, they tend to feel that 'my opinions are not being respected,' making power-related conflicts more frequent. On the other hand, it has been reported that in couples high in openness, flexible power distribution unconstrained by traditional gender roles is more easily achieved.

Regarding the relationship between conscientiousness and power, highly conscientious people tend to naturally acquire power in financial management and life planning due to their strong sense of responsibility. However, this often takes the form of 'management' rather than 'domination,' and tends to be a form of power exercise that is appreciated by the partner.

How to Build Healthy Power Balance

Gottman & Silver (1999) identified 'acceptance of influence' as a characteristic of long-term stable couples. This is the ability to allow oneself to be influenced by a partner's opinions and feelings and to flexibly adjust one's own position. It has been shown that the degree to which men in particular accept their partner's influence is a powerful predictor of relationship stability.

The following approaches for building healthy power balance are supported by research. First, acknowledging 'domain-specific expertise.' One partner leads in financial management, the other in cooking, each leads in specific aspects of childrearing - distributing power across domains. Research by Steil (1997) showed that couples practicing this 'distributed power' have the highest satisfaction.

Second, mutual guarantee of 'veto rights' in important decisions. Rather than one partner having final decision-making authority, creating a system where both can exercise veto rights on important matters ensures structural equality. Third, conducting regular 'relationship audits' to create opportunities for dialogue confirming whether both are satisfied with the current power distribution. Since power imbalance accumulates gradually, regular checks lead to early detection of problems.

The Boundary with DV and Moral Harassment - The Pathology of Power Imbalance

When power imbalance takes extreme forms, it develops into domestic violence (DV) or moral harassment. Johnson (2008) proposed an important typology distinguishing couple violence into 'intimate terrorism' and 'situational couple violence.' The former is systematic violence aimed at power and control, while the latter is incidental violence resulting from conflict escalation.

The characteristics of moral harassment include completely stripping the partner of power through economic control, forced social isolation, emotional manipulation (gaslighting), and systematic destruction of self-esteem. In Dutton & Goodman (2005)'s 'coercive control model,' the process by which the perpetrator gradually strips the victim of autonomy is described in detail.

The key point for distinguishing between healthy power imbalance and DV/moral harassment is the presence or absence of 'freedom of choice.' In healthy relationships, even the lower-power partner is guaranteed 'freedom to leave the relationship,' 'freedom to express opinions,' and 'freedom to maintain external relationships.' When these freedoms are systematically restricted, it has entered the territory of domination and abuse, not mere power imbalance. Before attempting to improve power balance, ensuring safety must be the top priority.

Toward Equal Relationships - Practical Application of Research Findings

The most important practical implication derived from power dynamics research is the recognition that 'equality does not arise naturally but must be consciously constructed.' Knudson-Martin & Mahoney (2009) revealed through interview research with couples maintaining equal relationships that they consciously practice 'mutual respect,' 'joint decision-making,' and 'emotional responsiveness' on a daily basis.

From the Big Five perspective, the combination of both partners' personality traits forms the initial settings of power dynamics. In couples where both are high in extraversion, power struggles tend to arise; in couples where both are high in agreeableness, a stalemate where 'nobody decides' tends to occur. Being aware of how one's own personality traits influence power dynamics is the first step toward healthy balance.

In longitudinal research spanning over 40 years by Gottman's research team, it has been repeatedly confirmed that couples with equal power balance have significantly lower divorce rates and better physical health indicators. Power equality is not merely an 'ideal' but an empirically supported foundation that sustains relationship longevity and both partners' health. Ultimately, it is important to frame power balance issues not as 'winning and losing' but as 'collaboration.' When a relationship is viewed as a 'zero-sum game,' one partner's power gain means the other's power loss. However, in a 'win-win' framework, it becomes possible for both to share power in a way that leverages each other's strengths and compensates for each other's weaknesses. The realization of this collaborative power is the foundation of long-term highly satisfying relationships.