Making your investments visible to both partners
Name and acknowledge the shared investments in the relationship — children, history, shared projects — to both parties.
Key takeaways
- What it is: Name and acknowledge the shared investments in the relationship — children, history, shared projects — to both parties.
- Why it works: Investment predicts commitment partly because it raises the perceived cost of leaving. But investment also has a psychological function beyond sunk costs: it signals shared history, mutual stake, and the effort that has been made. When investments become invisible or taken for granted, they lose their protective function. Making them visible restores both partners’ awareness of what the relationship already contains.
- Evidence: Backed by observational / correlational evidence.
- Avoid: Treating investment only as a reason to stay (sunk cost) rather than as a genuine source of value — which produces resentful staying rather than committed staying.
Why it works
Investment predicts commitment partly because it raises the perceived cost of leaving. But investment also has a psychological function beyond sunk costs: it signals shared history, mutual stake, and the effort that has been made. When investments become invisible or taken for granted, they lose their protective function. Making them visible restores both partners’ awareness of what the relationship already contains.
How to do it
- 1List the significant investments you have made in this relationship: emotional, financial, temporal, sacrificial, shared.
- 2List the investments your partner has made that you are aware of.
- 3Share both lists with each other — particularly your acknowledgment of what they have invested.
- 4Identify the investments you most fear losing if the relationship ended.
- 5Create at least one new shared investment together — a project, plan, or commitment that extends your mutual stake.
What the evidence says
ObservationalInvestment size is one of the three stable predictors of commitment in Rusbult’s model, supported across cultures and relationship types. The mechanism includes both sunk-cost effects and the felt sense of shared stake.
Honest caveat: High investment can maintain commitment in unhappy relationships (trap effect) — this practice is beneficial only when combined with honest satisfaction assessment.
- — Le & Agnew (2003), Commitment and its theorized determinants, Personal Relationships
Common mistake
Treating investment only as a reason to stay (sunk cost) rather than as a genuine source of value — which produces resentful staying rather than committed staying.
IX Coach helps you map your shared investments and design at least one new investment that both partners actively choose, building a forward-oriented stake alongside historical investment.
Practice this with IX Coach →