GDP and Economic Growth

macroeconomics
indicators
Published

October 10, 2025

GDP and Economic Growth

Gross Domestic Product (GDP)

GDP is the total market value of all final goods and services produced in a country during a specific period (usually one year).

GDP Components

\[GDP = C + I + G + (X - M)\]

Where: - C = Consumption (Household spending) - I = Investment (Business investment) - G = Government Spending - X = Exports - M = Imports - (X - M) = Net Exports

Types of GDP

1. Nominal GDP

GDP measured at current prices.

2. Real GDP

GDP measured at constant prices to eliminate the effect of inflation.

\[\text{Real GDP} = \frac{\text{Nominal GDP}}{\text{GDP Deflator}} \times 100\]

Economic Growth Rate

\[\text{Growth Rate} = \frac{\text{GDP}_{\text{this year}} - \text{GDP}_{\text{last year}}}{\text{GDP}_{\text{last year}}} \times 100\%\]

GDP per Capita

\[\text{GDP per Capita} = \frac{\text{GDP}}{\text{Population}}\]

Measures the average standard of living of a country’s residents.

GDP Limitations

  1. Doesn’t measure welfare - Doesn’t account for income distribution
  2. Ignores informal economy - Excludes barter transactions, household economy
  3. Doesn’t consider quality of life - Health, education, environment
  4. Negative externalities - Pollution and environmental damage are not subtracted

Business Cycle

The economy moves in cycles: 1. Expansion - Economic growth 2. Peak - Growth peak 3. Contraction/Recession - Economic decline 4. Trough - Lowest point 5. Return to Expansion

Economic Growth Factors

  1. Physical Capital - Machinery, buildings, infrastructure
  2. Human Capital - Education and skills
  3. Natural Resources - Available resources
  4. Technology - Innovation and productivity
  5. Institutional Quality - Good governance, rule of law