National income can be seen as the grand total of all earnings generated within the boundaries of a country from labor, production, and capital. It acts much like a barometer that measures the economic health and productivity of a nation. When people discuss national income, they are often referring to the Gross Domestic Product (GDP) or Gross National Product (GNP), which are popular indicators used to gauge and compare the economic health of countries.
- GDP considers the monetary value of all finished goods and services within a nation's borders in a given time period.
- GNP accounts for all income earned by a nation's residents, no matter where they are in the world.
Overall, national income reflects the vitality of a nation's economy. It sums up the income from all sectors, emphasizing both the workforce and corporate-generated earnings. An increase in national income indicates a thriving economy, providing governments with insights into how to improve existing policies.