Research on Financial Attitudes and Personality - Findings from Donnelly (2012)
Multiple studies have demonstrated that attitudes and behaviors toward money are closely linked to personality traits. Donnelly, Iyer, & Howell (2012) examined the relationship between Big Five personality traits and consumer behavior in a large-scale sample, revealing that personality significantly predicts financial management patterns. This research provides an important theoretical foundation for understanding financial conflicts between couples.
A particularly noteworthy finding from Donnelly et al. is that personality traits remained significant predictors of financial behavior even after controlling for income and education level. In other words, differences in financial attitudes are not merely differences in economic background but are rooted in deeper personality foundations. Even couples with the same income level can have vastly different financial management styles due to differences in personality traits.
Furnham's (1984) pioneering research proposed a framework for understanding attitudes toward money along four dimensions: money as power, money as security, money as love, and money as freedom. The psychological meaning individuals assign to money is shaped by childhood experiences, family environment, and cultural background, but personality traits also significantly influence this meaning-making process.
The Strong Correlation Between Conscientiousness and Saving Behavior
Among the Big Five traits, conscientiousness shows the strongest association with financial management. Nyhus & Webley (2001) confirmed that highly conscientious individuals consistently score high on planned saving behavior, thorough budget management, and impulse-buying suppression. The sub-facets of conscientiousness - self-discipline, planfulness, and orderliness - support the setting and achievement of long-term financial goals.
Ameriks, Caplin, & Leahy (2003) demonstrated that the "propensity to plan" is a powerful predictor of savings amounts, which aligns with the core features of conscientiousness. Highly conscientious people tend to prepare systematically for future uncertainty, methodically building retirement funds, emergency reserves, and savings for major purchases.
Conversely, people low in conscientiousness tend to exhibit impulsive spending patterns. Achtziger, Hubert, Kenning, Raab, & Reisch (2015) confirmed a significant negative correlation between impulse-buying frequency and conscientiousness. While impulse purchases provide temporary emotional satisfaction, they become a source of long-term financial stress and trigger conflicts between partners.
When one partner in a couple is high in conscientiousness and the other is low, differences in financial management style become a source of daily friction. The highly conscientious partner feels frustrated thinking "why can't you stick to the plan," while the less conscientious partner feels suffocated thinking "why must everything be so tightly controlled." This structural conflict is experienced not merely as a "difference in spending habits" but as a deeper clash of values.
Openness and Spending Patterns - Investing in Experiences
Openness to Experience exerts a distinctive influence on spending patterns. Mowen (2000) showed that people high in openness tend to spend more on "experiential consumption" - travel, art, education, and new experiences. Because they place greater value on acquiring experiences and knowledge than material possessions, the objects of their spending differ fundamentally.
Van Boven & Gilovich (2003) demonstrated that spending on experiences produces greater long-term happiness than material purchases. From this perspective, the spending patterns of high-openness individuals could be considered "wise consumption." However, when a partner is low in openness, misunderstanding easily arises: "why spend money on things that leave nothing tangible behind?"
Additionally, people high in openness tend to show greater interest in novel investment methods and financial products. They are drawn to high-risk new financial instruments such as cryptocurrency, startup investments, and crowdfunding. When a partner is low in openness, these investment behaviors may be perceived as "reckless gambling," potentially causing serious conflict.
When both partners in a couple are high in openness, joint investment in experiential consumption (travel, cultural activities, learning) strengthens the self-expansion function of the relationship and contributes to increased relationship satisfaction. However, for couples with differing levels of openness, dialogue at the values level about "what money should be spent on" becomes necessary.
Statistics on Financial Conflict Between Couples - A Leading Cause of Divorce
Financial problems are one of the most common causes of conflict between couples and a major predictor of divorce. Dew, Britt, & Huston (2012) demonstrated in a longitudinal study that the frequency of financial conflict early in marriage significantly predicts subsequent divorce risk. Financial conflicts are more difficult to resolve than other conflict themes (housework division, childrearing, sexual life) and tend to become chronic.
Britt & Huston (2012) identified three reasons why financial conflict differs qualitatively from other conflicts. First, financial issues arise repeatedly in daily life, becoming a chronic source of stress. Second, money carries deep psychological meanings such as "security," "freedom," and "status," making superficial compromise difficult. Third, financial problems are directly linked to future anxiety, so current conflicts evoke fear about the future, amplifying emotional reactions. Related books can also be found at related books (Amazon).
Archuleta, Britt, Tonn, & Grable (2011) showed that the "method of resolving financial conflicts" is a stronger predictor of relationship satisfaction than the frequency of financial conflicts themselves. In other words, having different opinions about money is not inherently problematic - what determines relationship quality is how those differences are discussed and resolved. Couples with constructive financial communication skills can maintain high relationship satisfaction even when they disagree about money.
The Psychology of Spender-Saver Couples
Rick, Small, & Finkel (2011) conducted groundbreaking research demonstrating an "opposites attract" phenomenon in which spendthrifts and tightwads are drawn to each other and tend to form couples. Ironically, however, this combination was also shown to have the highest frequency of financial conflict and the lowest relationship satisfaction.
Why are people attracted to opposite types? Rick et al. explain that people recognize the extremity of their own financial tendencies and expect a partner with the opposite tendency to "provide balance." Spenders find reassurance in savers' prudence, while savers find appeal in spenders' generosity and enjoyment of life. However, as the relationship progresses, this "complementarity" transforms into "opposition."
The conflict between spenders and savers is not merely a matter of "how much to spend." At its root lies a fundamental difference in psychological attitudes toward money. For savers, money represents "security" and "preparation for the future," and spending triggers anxiety. For spenders, money represents "freedom" and "enjoyment," and excessive saving is experienced as a diminishment of quality of life. Without understanding this difference in psychological meaning, discussing only surface-level budget allocation will not lead to fundamental resolution.
Britt, Grable, Nelson Goff, & White (2008) showed that reframing differences in financial values not as "right/wrong" but as "different priorities" is effective in reducing conflict.
Research on Joint vs. Separate Finances
Couples' financial management systems can be broadly categorized into three types: pooling (all income combined), independent (completely separate), and partial pooling (a hybrid approach). Vogler, Brockmann, & Wiggins (2006) examined the relationship between these management systems and relationship satisfaction.
Pooling (combining all income into one account) is traditionally the most common approach and functions as a symbol of "unity" and "trust." Addo & Sassler (2010) showed that couples who adopt pooling tend to have higher relationship commitment. However, when there is a large income gap, the lower-earning partner may feel that "it's not really my money," potentially causing power imbalances.
Independent management (each person manages their own income and splits shared expenses) is a modern approach that prioritizes individual autonomy. Kenney (2006) noted that while couples who adopt independent management enjoy high individual freedom, their "sense of unity as a team" tends to decline. Additionally, defining "fair splitting" becomes ambiguous when there is an income gap.
Partial pooling (maintaining both a joint account for shared expenses and individual accounts) is a compromise approach that balances unity and autonomy. Burgoyne, Reibstein, Edmunds, & Dolman (2007) showed that couples who adopt partial pooling report the highest relationship satisfaction, because both cooperation toward shared goals and freedom for personal spending are secured.
Which system is optimal depends on the couple's values, income structure, and life stage. What matters more than the choice of system itself is the process of dialogue in which both parties agree on the system and periodically review it.
Communication Methods for Improving Financial Compatibility
Improving financial compatibility does not mean "having the same financial attitudes" but rather "constructively integrating different financial attitudes." Klontz, Britt, Mentzer, & Klontz (2011) demonstrated that clarifying one's belief systems about money (money scripts) and sharing them with a partner is effective in reducing financial conflict.
The first step is "financial self-awareness." This involves introspecting on what emotions you hold toward money, what psychological meaning you assign to money, and how childhood financial experiences influence your current attitudes. In Klontz & Klontz's (2009) concept of "money scripts," unconscious beliefs such as "money is evil," "money will make me happy," "talking about money is vulgar," and "there is never enough money" are identified as governing financial behavior.
The second step is "regularizing financial dialogue." Shapiro (2007) showed that couples who openly discuss finances on a regular basis (approximately once a month) experience less financial conflict and achieve higher rates of financial goal attainment. This dialogue should be conducted preventively, not only "after problems arise."
The third step is "setting shared financial goals." By jointly establishing short-term goals (travel funds), medium-term goals (home purchase), and long-term goals (retirement living), and creating plans together to achieve them, financial management is experienced as a "joint project" rather than a "constraint." Xiao, Tang, Serido, & Shim (2011) confirmed that couples with shared financial goals have higher relationship satisfaction and lower financial stress.
The fourth step is "securing personal discretion." A system in which all spending is jointly managed and approved tends to create feelings of constraint and power imbalance. By establishing a "personal allowance" that each person can spend freely, with no obligation to explain spending within that range to the other, a balance between autonomy and cooperation is achieved.