Net National Income (NNI) is a measure of a country's total economic income, accounting for depreciation of capital goods. It reflects the total income earned by residents of a nation, including wages, profits, rents, and taxes, minus subsidies. NNI provides insight into the economic well-being of a country's citizens. NNI is derived from Gross National Income (GNI) by subtracting the depreciation of capital. This metric helps policymakers and economists assess the sustainability of economic growth and the overall health of the economy. Understanding NNI is crucial for evaluating the financial status of a nation and its residents.