Difference Between Gdp, Gnp and Nnp
The difference between GDP and GNP is the net foreign income (NFI), which is the difference between factor payments received from the foreign sector by domestic citizens and factor payments made to foreign citizens for domestic production. The "gross" in GDP and GNP indicates that there is no allowance for depreciation (capital consumption), value lost that occurs to inventory while it sits before being sold or consumed or the amount of capital resources used up in the production process. That is the difference between GDP and NNP. Depreciation (DP) is a reduction in the value of an asset with the passage of time, due to wear and tear. It can include consumption of goods in the production of other goods or services. Examples are the wear and tear that occurs with capital equipment such as machinery, transportation vehicles, office equipment and tools (all of these items eventually wear down and need to be replaced), accidental damage, obsolescence or retirement of capital assets.
GDP is most commonly calculated by the expenditure method. It is done by adding consumer expenditure (C) + firm’s investments (I) + government spending (G) + exports minus imports (X-M). GNP is calculated by taking GDP + net property income from abroad (NFI). NNP is calculated by taking GNP – DP.