Per capita income

[1] This allows the calculation of per capita income for both the country as a whole and specific regions or demographic groups.

However, comparing per capita income across different countries is often difficult, since methodologies, definitions and data quality can vary greatly.

[2][3] Since the 1990s, the OECD has conducted regular surveys among its 38 member countries using a standardized methodology and set of questions.

When used to compare income levels of different countries, it is usually expressed using a commonly used international currency, such as the euro or United States dollar.

While per capita income can be useful for many economic studies, it is important to keep in mind its limitations.