Standard of living measures the level of wealth, comfort, and material goods available to a person or a group. It includes income, but also access to healthcare, education, housing, clean water, and leisure. A country can have high average income and still deliver a poor standard of living if the money is concentrated or public services are weak.

Economists use several indicators. GDP per capita is the crudest. The Human Development Index adds life expectancy and education. The OECD Better Life Index tracks housing, work-life balance, and community. None is perfect, but together they paint a fuller picture than income alone. A high standard of living usually means longer lives, lower infant mortality, and more time for family and hobbies.

Standards of living have risen dramatically over the past two centuries. In 1800, average global life expectancy was around 30 years. Today it is over 70. Famine was common. Now it is rare outside conflict zones. The gains are not evenly distributed, and billions still live in poverty. But the long-run trend is unmistakable. Industrialization, public health, and technology have transformed what it means to live a decent life.

Standard of living indicators

• GDP per capita
• Life expectancy
• Literacy and education levels
• Access to clean water and sanitation
• Housing quality