1. From the perspective of expenditure, national income is the sum of total national consumption, total investment, government purchasing power and total net exports.
2. From the perspective of income, national income is almost equal to national factor income, corporate pre-tax profit, non-corporate business owner income, corporate transfer payment and corporate indirect tax total income, which are closely related.
National income is a data measurement index, which is mainly used to express the income index brought by the product or labor value produced by a country in a fixed period of time.
Extended data
The most basic embodiment of improving people's livelihood is to increase national income. We can increase national income through the following measures.
1, reform the income distribution system;
2. Improve social labor productivity;
3. Save production resources.