The income method of measuring national income is one of the three primary methods used to calculate a country's GDP (Gross Domestic Product). It measures the total income generated by the factors of production in the economy over a specific period of time, usually a year.

Factors of Production
The factors of production include labor, capital, and land. Labor is the work done by individuals, capital refers to the machinery and equipment used in production, and land includes natural resources such as oil, minerals, and timber.

Components of Income Method
There are four main components of the income method:
1. Wages and Salaries - This includes the total amount paid to workers for their labor over the year. It includes both full-time and part-time workers, as well as self-employed individuals.
2. Rent - This includes the income generated by the use of land and buildings for production purposes.
3. Interest - This includes the income generated by lending money or capital to others.
4. Profits - This includes the income generated by businesses after deducting all expenses, including wages, rent, and interest.

Calculating National Income
To calculate national income using the income method, the total income generated by all four components is added together. This gives us the Gross Domestic Product (GDP) of the country.

Importance of National Income
The national income is an important economic indicator as it helps policymakers and economists understand the overall health of the economy. It is used to measure economic growth, income distribution, and standard of living. By measuring national income, policymakers can make informed decisions about fiscal and monetary policies that can affect the overall health of the economy.

Conclusion
In conclusion, the income method of measuring national income is an important tool used to calculate the total income generated by the factors of production in an economy. By measuring national income, policymakers can make informed decisions about the overall health of the economy and make appropriate policy decisions.

Income method - compensation to employees + mixed income + operating surplus.
Income method = NDP(FC).
National income = NNP (FC)
NNP (FC )= NDP(FC)+- NFIA.