National income accounting involves measuring the total value of goods and services produced within an economy. There are several key concepts:
1) Gross domestic product (GDP) is the total market value of all final goods and services produced domestically in a given year. GDP can be measured at market prices or factor costs.
2) National income accounts also measure domestic and national aggregates that exclude depreciation or include only factor incomes.
3) GDP and national income can be measured at current or constant prices to account for inflation. Converting nominal GDP to real GDP using a price deflator allows analysis of changes in physical output.
4) While GDP measures total output, welfare depends on additional economic and