Submitted:
25 June 2025
Posted:
26 June 2025
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Abstract
Keywords:
1. What: Money as Decision-Space
- Person A (broke) can walk, sit in Central Park, read at the library. They have some agency, but operate within tight boundaries.
- Person B (wealthy) can do everything Person A can do, plus: eat anywhere, stay anywhere, attend events, leave the city at will, hire help, buy time.
- Objective: the physical, legal, and logistical space of possible action. This is what money directly expands.
- Perceived: the felt sense of control, shaped by trauma, belief, and expectation.
2. So What: Why It Matters
- The happiness–income paradox: Research has long conflicted on whether money buys happiness. Kahneman and Deaton (2010) found emotional well-being plateaus at $75 k.[1] Killingsworth (2023) shows happiness continues to rise for most people.[2] The tension dissolves once we separate objective agency from perceived well-being: money always expands the former; the latter depends on psychology.
- Individual strategy: If what makes you happy costs little, you don’t need much money. If your goals require travel, flexibility, or investments, you need more. The key question isn’t "How much money do I want?" but "What do I want to be able to do?"
- Policy precision: Cash transfers, UBI, and micro-finance work because they expand viable choices, not because they inject pleasure. Success should be measured in newly feasible actions, not ambiguous “happiness scores.”
- Design implication: Societies can expand real freedom without making everyone rich. Public transit, broadband, and legal simplicity are infrastructure for agency.
The Happiness Paradox Explained
- Agency infrastructure: Universal healthcare, free education, reliable public transit, and strong safety nets dramatically lower the personal cost of exercising choices. Citizens enjoy large decision-spaces without needing high income.
- Low friction, low fixed costs: Walkable cities, affordable housing, and simple bureaucracy reduce everyday friction. Result: high agency at low income levels.
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Agency-Adjusted Income (AAI): Raw income is a misleading signal. What matters is how far your income stretches—how many viable options it unlocks. We define:A city where income and cost of living both rise by 100% gives you no net gain in agency (). A region with 25% higher income but baseline costs yields : more real choices with less nominal money. Policy should track AAI (or agency-per-capita), not GDP or median wages.
- Geo-arbitrage and migration flows: Immigrants come to the U.S. not for guaranteed wealth, but for greater upward mobility.[6] Conversely, digital nomads leave high-cost cities for places like Thailand or Mexico, stretching their decision-space via geo-arbitrage (relocating to cheaper regions to stretch income).[7] Both behaviors reveal the same principle: people move to optimize for agency, not just money.
| Prediction: Aggregate well-being tracks agency-per-capita more reliably than GDP-per-capita. Countries that invest in “agency infrastructure” (healthcare, transit, legal simplicity) consistently outperform richer peers on happiness metrics.[5] |
The American Promise as Agency Architecture
Now What: Designing for Agency
- Policy: Track agency-per-capita, not GDP. Invest in infrastructure, broadband, and legal clarity to expand freedom without demanding high personal income.
- Mental health: Depression often manifests as a collapse of perceived agency. Restoring an individual’s internal map of choices is integral to restoring their wellbeing.
- Urban design: Build cities for choice-flow: flexible transit, access to nature, and frictionless civic systems. A well-designed city increases agency per dollar spent.
- Inequality: The real divide is not merely income; it is the number of available pathways. Closing the agency gap benefits everyone, not just the poor.
3. Conclusion: Rethinking Money, Reclaiming Freedom
- Why some low-income countries outperform wealthy ones on happiness.
- Why people migrate toward perceived freedom and relocate for geo-arbitrage.
- Why depression feels like entrapment.
- Why wealth doesn’t guarantee fulfillment.
- Why “freedom” is a math problem, not a metaphor.
Appendix A Mathematical Formalization
Appendix A.1. Feasible-Set Definition
- : fixed constraints (time, laws, skills, physics)
- : monetary cost of action x
- M: available money
Appendix A.2. Agency Metrics
- Cardinality (discrete):
- Volume (continuous):
- Entropy (probabilistic):
Appendix A.3. Monotonicity Lemma
Appendix A.4. Visual Illustration

Appendix A.5. Objective vs. Perceived Agency
- Objective agency: The full structural option set —physically, legally, and logistically possible moves.
- Perceived agency: The subset an agent believes they can act on—shaped by psychology, trauma, or belief.
References
- Kahneman, Daniel, and Angus Deaton. “High income improves evaluation of life but not emotional well-being.” Proceedings of the National Academy of Sciences, 107 (38), 2010, 16489-16493.
- Killingsworth, Matthew A., Daniel Kahneman, and Angus Deaton. “Experienced well-being rises with income, even above $75,000 per year.” Proceedings of the National Academy of Sciences, 120 (11), 2023, e2204912120.
- Helliwell, John F., Richard Layard, Jan-Emmanuel De Neve, et al. World Happiness Report 2025. Wellbeing Research Centre (Oxford), Gallup, and United Nations SDSN, 2025.
- “Costa Rica climbs in 2025 World Happiness Rankings.” The Tico Times, 20 March 2025.
- Associated Press. “Finland again ranked the happiest country in the world as U.S. falls to record low.” AP News, 20 March 2025.
- Abramitzky, Ran, Leah Boustan, Santiago Jácome, and Juan Pérez. “The children of immigrants experience faster upward mobility.” NBER Reporter, Winter 2025.
- “Geo-arbitrage can help digital nomads lead a better life.” andysto.com, 14 September 2024.
- Economic Policy Institute. Wage Stagnation in Nine Charts. EPI, 2023.
- Pew Research Center. “How the American Middle Class Has Changed in the Past Five Decades.” 2022.
- Pew Research Center. “Americans Are Split Over the State of the American Dream.” 2024.
- Sen, Amartya. Development as Freedom. Anchor Books, 1999.
- Nussbaum, Martha C. Creating Capabilities: The Human Development Approach. Harvard University Press, 2011.
- Frankl, Viktor E. Man’s Search for Meaning. Beacon Press, 1959.
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