Gross Domestic Product :
It is the total value of all final goods and services produced within the boundary of country during the given period of time.
Gross National Product :
It is the total value of the total output or production of final goods and services produced by the nationals of a country during a given period of time.
Gross National Income :
It is the total domestic and foreign output claimed by residents of a country, consisting of gross domestic product (GDP) plus factor incomes earned by foreign residents, minus income earned in the domestic economy by non-residents.
Net National Product :
The total value of goods produced and services provided in a country during one year, after depreciation of capital goods has been allowed for.
