Why wealth is a terrible measure of a good life
In the 1980s, economist Amartya Sen and philosopher Martha Nussbaum proposed the Capability Approach, arguing that human well-being cannot be measured by income or subjective happiness alone. Real progress depends on what people are actually capable of being and doing—such as being well-nourished, moving freely, participating in politics, and being educated. Two people with identical incomes may have drastically different capabilities if one lives under oppression or disability.
The Flaws of Measuring Lives by Wealth Alone
For decades, standard economic policy treated income and wealth as the primary benchmarks of human progress. The underlying assumption was simple: if a society generates higher gross domestic product per capita, or if an individual possesses more commodities and financial assets, their quality of life naturally improves. However, this resource-centered view overlooks a fundamental reality of human existence. Goods and wealth are merely instruments; they are tools rather than the ultimate ends of living well. Having access to a resource does not automatically translate into the ability to lead a flourishing, meaningful life.
Traditional utilitarian economics introduced another alternative: measuring well-being through subjective happiness or mental satisfaction. Yet this approach faces the problem of adaptive preferences. Individuals living in conditions of severe deprivation, discrimination, or chronic illness often adjust their expectations downward to cope with harsh realities. A person who is malnourished or denied basic rights may report feeling content simply because they have learned not to hope for more. Relying purely on subjective satisfaction masks systematic injustice and fails to register real deficits in human freedom.
In response to these deficiencies, economist Amartya Sen pioneered the capability approach in the late 1970s and 1980s, later developed in close dialogue with philosopher Martha Nussbaum. Instead of asking how much money a person earns or how satisfied they report feeling, the capability approach asks a fundamentally different question: what is this person actually able to be and to do? By shifting the focus from means to actual human ends, the framework provides an alternative foundation for evaluating poverty, inequality, justice, and social development.