Which metric is commonly used to assess a country's level of development?

• A. Wind speed
• B. GDP per capita
• C. Population density
• D. Crop yield in a year

Answer: (B)

GDP per capita focuses on the average amount of economic output available to each person, making it a common quick gauge of a country’s wealth and living standards. By dividing the total value of a country’s goods and services produced in a year by its population, it provides a straightforward proxy for how much income people might have to spend on goods, services, and investments that improve quality of life. Development is about the level of resources and opportunities people have, and this metric is closely tied to that idea, which is why it’s widely used to compare development across countries.

Other options don’t fit as indicators of development. Wind speed is an environmental factor, not a measure of economic well-being. Population density shows how crowded an area is, reflecting urbanization patterns rather than overall wealth per person. Crop yield indicates agricultural productivity in a given year, not the broader, sustained economic conditions that reflect development.

Keep in mind that GDP per capita is a useful snapshot but has limitations—it doesn’t capture inequality, health, education, or non-market activities. For a more rounded view, indicators like the Human Development Index are also used.