Five forms of wealth reinforce each other.
Physical capacity makes time usable. Time develops skills. Skills become contributions. Contributions can strengthen relationships, and financial resources protect future choices. Money can then be reinvested in health, learning and human connection. This is a proposed pathway, not a deterministic law.
Consciousness and intention are the foundation for directing these forms of capital, not a sixth capital. No one-dimensional score can capture the full value of a life.
Conceptual stock–flow relation: Capital next period = capital today + investment + benefits converted from other capital − depletion. Each capital has different units and must be measured separately.
CAPITAL 01 / 05
Physical capital
Health is the capacity to act and recover — not simply the absence of illness.
Bodily capacity cannot always be replaced. A sustainable approach protects performance today, recovery tomorrow, longer-term stability and the avoidance of irreversible harm.
What to observe
- Everyday functional capacity
- Recovery time after activity
- Stability and warning signs
How to build it
- Make short daily observations
- Look for patterns without confusing correlation with cause
- Adjust activity and rest to personal circumstances
Tools that help
Grossman’s health capital is an established economic concept. Yamaguchi’s PCV ≈ E × Y × S × (1−R) is a conceptual, not clinically validated, model.
CAPITAL 02 / 05
Time capital
Time cannot be deposited in a bank. What matters is freedom over when and how it is used.
The value of time depends not only on available hours, but on agency, uninterrupted attention, and opportunities to share time with others.
What to observe
- Discretionary hours under your control
- Uninterrupted periods
- Meaningful shared experiences
How to build it
- Reserve time for yourself
- Offer available slots without repeated scheduling
- Reflect on how time was used
Tools that help
Research on discretionary time and subjective well-being suggests that merely maximizing free hours does not ensure well-being.
CAPITAL 03 / 05
Talent capital
Talent becomes a real asset when an individual strength turns into contribution.
Credentials measure past achievement. The source of future capacity is discovering distinctive strengths, practising, gathering feedback and making something useful.
What to observe
- Clarity of strengths and interests
- Practice and improvement over time
- Concrete examples of contribution
How to build it
- Find a strength through questions and reflection
- Test it in real-world activity
- Use feedback to improve
Tools that help
Human capital economics supports investment in skills. The proposed multiplication of uniqueness, practice and contribution is not a validated talent score.
CAPITAL 04 / 05
Social capital
A thousand contacts do not equal a few relationships built on trust.
Social capital grows through sustained, mutually wanted relationships, reliable commitments, and concrete acts of help. Monetary transactions may simplify settlement while gifts and collaboration may preserve context and meaning.
What to observe
- People one can reliably turn to
- Sustained, mutually appropriate connections
- Actual reciprocity and joint work
How to build it
- Remember context and past interactions
- Offer something useful without demanding a return
- Keep in touch at an appropriate frequency
Tools that help
OECD treats social trust and connection as resources for well-being. Yamaguchi’s SSRN paper proposes conditions for choosing monetary versus non-monetary exchange.
CAPITAL 05 / 05
Financial capital
Money is not the purpose of life; it is a means to preserve choice.
Wealth matters when it protects liquidity, absorbs shocks, aligns with your time horizon and helps nurture other capitals. Net worth alone omits liabilities, concentration risk and the freedom to use it.
What to observe
- Liquidity relative to obligations
- Net financial assets and risk exposure
- Alignment between resources and purposes
How to build it
- Consolidate account and holding records
- Review diversification, obligations and liquidity
- Examine company value and risk before decisions
Tools that help
Shares organises holdings and requires user approval for proposed transactions. No investment outcome is guaranteed.
RESEARCH AND THEORY
Evidence is the starting point — not the finish line.
Health capital, human capital and social capital have established research histories. The five-capital mapping, Yamaguchi's PCV model, and his monetary/non-monetary 5S framework are original conceptual proposals, not scientifically validated universal equations.
- Grossman (1972) — Health Capital ↗
- WHO (2020) — Physical Activity Guidelines ↗
- Sharif et al. (2021) — Time and Well-being ↗
- Becker (1964) — Human Capital ↗
- OECD (2024) — How's Life? ↗
- Bank of England (2014) — Money Creation ↗
- Yohei Yamaguchi (2025) — Exchange Paper / SSRN ↗
- Yohei Yamaguchi — New Era Money Book ↗
- Yamaguchi — Health Science ↗
- Yamaguchi — Money Theory ↗
An SSRN posting is a working paper and does not imply peer review. Product capabilities evolve; the proposed measurement indicators on this page are not all automated features in the products. This page is neither medical nor investment advice.