If the national income is measured as an aggregate value of all final goods and services produced by all the firms it is called _______.
National income is measured as an aggregate value of all final goods and services produced by all the firms it is called product method.
Product method: in this method national income is measured as money value of all final goods and services produced in an economy during a year. Final goods here refer to those goods which are directly consumed and not used in further production process.