Gross National Income

The total income earned by a country's residents through production activities; an indicator that reflects changes in terms of trade and other factors in GDP.

Gross National Income

Overview

Gross National Income (GNI) is a macroeconomic indicator representing the total income earned by a country's residents from participating in production activities at home and abroad. In the past, it was called Gross National Product (GNP), but after the 1993 revision of the System of National Accounts (SNA), the term GNI became established, emphasizing income rather than production. GNI is a key indicator for understanding a country's economic size and the actual income level of its people; in particular, GNI per capita is widely used to compare countries' income levels and standards of living.

Key Details

Definition and Concept

GNI means the total income earned by a country's residents from participating in production activities during a given period (usually one year). Here, "nationals" is not a concept of nationality but of residents, including individuals and corporations that have resided in the country for at least one year. Therefore, income earned abroad by Korean residents is included, but income earned in Korea by foreigners is excluded.

Difference from GDP

GNI is often compared with Gross Domestic Product (GDP). GDP measures the value of goods and services produced within a country's borders, whereas GNI measures the flow of income based on "nationals." The relationship between the two indicators is summarized by the following equation.

> GNI = GDP + (income received from abroad) - (income paid to foreigners)

In other words, if a country's nationals earn more income abroad than foreigners earn in that country, GNI is larger than GDP. Major adjustment items include overseas investment returns, overseas labor income, and remittances from foreign workers.

Calculation of GNI

GNI can be approached from three aspects: production, expenditure, and distribution. On the production side, net factor income from abroad is added to GDP; on the expenditure side, consumption, investment, government spending, and net exports are summed and then adjusted. On the distribution side, it is calculated by summing wages, operating surplus, property income, production taxes, and other items. Real GNI is nominal GNI adjusted for price changes, showing changes in the actual purchasing power of the people. Real GNI is greatly affected by changes in the terms of trade (the relative prices of exports and imports); if export prices rise, more income can be obtained from the same output, increasing real GNI.

GNI per Capita and Income Level Assessment

GNI per capita is GNI divided by population, showing the average income level of individual citizens. The World Bank classifies countries into high-income, upper-middle-income, lower-middle-income, and low-income countries based on GNI per capita. This is used to assess the development stage of developing countries and to establish international aid policies. However, the per capita average has the limitation of not reflecting inequality in income distribution.

Limitations and Criticism

GNI reflects only production activities traded in markets, so non-market activities such as housework and volunteer work are not included. It is also criticized for not considering negative externalities such as environmental destruction and resource depletion, and for not showing inequality in income distribution. To address these limitations, various alternative indicators have been developed, including the Human Development Index (HDI), real GNI, Net National Income (NNI), and inclusive wealth indicators.

Recent Trends

As of 2024–2025, reforms to GNI measurement are being discussed in response to climate change and the spread of the digital economy. The United Nations (UN) and the World Bank are reviewing ways to reflect the value of digital services, intangible assets, and the data economy in national accounts. In addition, countries use GNI per capita to determine whether they have entered high-income status; Korea recorded GNI per capita of around USD 36,000 in 2023–2024, maintaining a high-income level among the world's top countries. Meanwhile, as real GNI growth has fallen below GDP growth due to a weak Korean won and worsening terms of trade, the problem of "production increases but the income felt by the people stagnates" has emerged as a major policy task. Accordingly, the government and research institutions are emphasizing the need for a multidimensional indicator system that comprehensively evaluates people's real purchasing power, distribution structure, and quality of life alongside GNI.