The difference between Gross National Product and Depreciation is called Net National Product (NNP). NNP at factor cost is the net output evaluated at factor prices. It includes income earned by factor of production through participation in the production process, such as wages and salaries, rents, profits etc.

It is also called National Income. NNPFC = NNPmp – Indirect taxes

+ Subsidies = National Income. But now NNP_MP is National Income

Transfer paymentOne-way payment of money for which no money, good, or  service is received in exchange. Governments use such payments as means of income  redistribution by giving out money under social welfare  programs such as social security, old age or disability pensions,  student grants, unemployment compensation, etc. Subsidies  paid to exporters, farmers, manufacturers, however, are not  considered transfer payments. Transfer payments are excluded  in computing gross national product.

Initially NNP_FC was known as National Income but Now NNP_MP is known as National Income.