Understanding Core Economic Indicators: GDP, GNP, and National Income

Key National Production Metrics

Gross Domestic Product (GDP)

GDP is the sum of production, valued at factor cost, of all productive sectors comprising the economy of a country. It reflects all final goods and services produced within the borders of the country in a year.

The GDP growth rate measures the relative importance of the change in GDP between two consecutive periods. GDP is the most commonly used indicator for studying a country's economy.

Gross National Product (GNP)

GNP is the market price value of all final goods and services produced by factors of production owned by the country's residents, regardless of whether the production occurs inside or outside its borders.

It differs from GDP by showing the output generated by factors of production owned by the inhabitants of the country. GNP allows for a better understanding of the total income earned by domestic residents in a given period of time.

GDP vs. GNP: Key Differences

• GDP is greater than GNP in countries with a significant presence of foreign capital in the productive apparatus.
• GNP will be higher than GDP in countries that own many investments abroad.

Net National Product (NNP)

Understanding Depreciation

Depreciation is an accounting concept that reflects the loss of value that occurs in productive capital due to use or obsolescence.

Calculating NNP

To measure the actual increase in production, the Net National Product (NNP) is used. NNP is obtained by subtracting depreciation from the GNP.

National Income Figures

National Income (NI / RN)

National Income (NI) displays the total earnings of all individuals for their participation in the production process over a specific period of time.

Disposable Income (DI)

Disposable Income shows the income that households have available to make their consumption and saving decisions. It is derived from National Income (NI) but adjusted for items that affect household access to funds.

Adjustments to Calculate Disposable Income

There are two items that form part of NI but are not available to families:

• Indirect taxes levied on such income.
• Undistributed corporate profits.

Conversely, there is one item that is not included in NI but increases the income of some households:

• Transfers received from the State.

Per Capita Income

Per capita income is calculated by dividing the National Income by the total number of inhabitants of a country. It serves as a key indicator of the average level of wealth among the country's residents.