The Easterlin paradox is an empirical observation in the field of happiness economics that suggests a weak or nonexistent correlation between a country's average income (or economic growth) and the average self‑reported subjective well‑being of its citizens over time. The paradox is named after the American economist Richard H. Easterlin, who first articulated the finding in a 1974 article titled “Does Economic Growth Improve the Human Lot?” published in Psychological Bulletin.
Core Observation
- Cross‑sectional data: Across different countries, higher per‑capita income tends to be associated with higher average happiness levels.
- Longitudinal data: Within a given country, increases in per‑capita income over time do not consistently translate into sustained rises in average happiness. In many cases, happiness plateaus after a certain income threshold (often approximated at around US $10,000–$15,000 per capita in 1990s purchasing power parity terms).
Theoretical Explanations
- Relative income: Individuals compare their earnings to those of peers; thus, absolute income gains may be offset by upward shifts in reference groups.
- Adaptation (hedonic treadmill): People quickly adjust to higher standards of living, causing initial boosts in well‑being to diminish over time.
- Satiation: Basic material needs are satisfied at relatively low income levels; additional income mainly funds non‑essential goods that have limited impact on happiness.
- Non‑material determinants: Social relationships, health, autonomy, and sense of purpose contribute substantially to well‑being and may dominate income effects.
Empirical Evidence
- 1974 study: Easterlin analyzed data from the United States and several other nations, noting that while wealthier nations reported higher happiness, rapid post‑World‑War II economic growth in the United States did not produce commensurate increases in average happiness.
- Subsequent replication: Various studies using data from the World Values Survey, Gallup World Poll, and European Social Survey have found mixed support. Some research confirms the plateau effect, whereas other analyses report modest but positive relationships between income growth and well‑being, especially in low‑income countries.
- Meta‑analyses: Comprehensive reviews (e.g., Stevenson & Wolfers, 2008) suggest that the magnitude of the income‑happiness association is context‑dependent, with stronger effects at lower income levels and diminishing returns thereafter.
Criticisms and Debate
- Methodological concerns: Critics argue that measurement error, cross‑cultural differences in reporting styles, and the choice of time horizons can bias results.
- Alternative interpretations: Some economists contend that the paradox reflects a lag between income growth and well‑being improvements, rather than a permanent dissociation.
- Policy implications: The paradox fuels debate over the emphasis on GDP growth as a proxy for societal progress, prompting interest in alternative metrics such as the Human Development Index (HDI) and Gross National Happiness (GNH).
Related Concepts
- Hedonic treadmill – the theory that individuals return to a stable level of happiness despite major positive or negative events.
- Income elasticity of happiness – the percentage change in reported well‑being resulting from a 1 % change in income.
- Well‑being economics – a subfield that studies how economic policies affect subjective welfare.
Key Publications
- Easterlin, R. H. (1974). “Does Economic Growth Improve the Human Lot? Some Empirical Evidence.” Psychological Bulletin, 81(2), 115–129.
- Stevenson, B., & Wolfers, J. (2008). “Economic Growth and Subjective Well‑Being: Reassessing the Easterlin Paradox.” American Economic Review, 98(1), 471‑475.
- Kahneman, D., & Deaton, A. (2010). “High Income Improves Emotional Well‑Being, but Not Life Satisfaction.” Proceedings of the National Academy of Sciences, 107(38), 16489‑16493.
Impact
The Easterlin paradox has significantly influenced both academic research and public policy by highlighting the limitations of income as a sole indicator of societal progress and encouraging the incorporation of well‑being measures into economic analysis.