2.1.4 Concepts of national income: gross domestic product (GDP), gross national product (GNP) and net national product (NNP), net national income (NNI) at market price and factor cost, disposable income

Concepts of National Income:

Gross Domestic Product (GDP): Gross Domestic Product (GDP) represents the total monetary value of all goods and services produced within a country’s borders during a specific time period, typically a year. It includes the value of goods and services produced by both domestic and foreign entities within the country. GDP is a key indicator of a country’s economic output and is used to assess its economic performance and growth. It can be calculated using the production approach, expenditure approach, or income approach.
Gross National Product (GNP): Gross National Product (GNP) is the total monetary value of all goods and services produced by a country’s residents, whether located within the country or abroad, during a specific time period. GNP takes into account the income earned by a country’s citizens or companies from their economic activities both domestically and internationally. It includes GDP along with net income from abroad (i.e., net factor income from abroad), which is the difference between income earned by the country’s residents from foreign sources and income earned by foreigners from domestic sources.

GNP = GDP + Net Factor Income from Abroad

Net National Product (NNP): Net National Product (NNP) is derived from GNP and represents the total value of goods and services produced by a country’s residents after accounting for depreciation or the wear and tear of capital assets during the production process. NNP is an important measure as it indicates the net addition to the country’s capital stock and its ability to maintain and replace its productive capacity.

NNP = GNP – Depreciation

Net National Income (NNI) at Market Price and Factor Cost: Net National Income (NNI) represents the total income earned by a country’s residents from all sources after adjusting for depreciation. It can be calculated at market price or factor cost.

NNI at Market Price includes indirect taxes (such as sales taxes) and subsidies, which affect the market price of goods and services. It is calculated as follows:

NNI at Market Price = NNP + Indirect Taxes – Subsidies

NNI at Factor Cost, on the other hand, excludes indirect taxes and subsidies. It represents the income earned by the factors of production (land, labor, capital, entrepreneurship) without considering any taxes or subsidies.

Disposable Income: Disposable income refers to the income that households have available for consumption and saving after paying taxes to the government. It is the actual income that individuals and families can use to meet their needs, invest, or save. Disposable income is a crucial concept in analyzing the standard of living and consumer spending patterns in an economy.

Disposable Income = Personal Income – Taxes and Other Deductions