Yes, GDP deflator is used to measure the effect of price changes on GDP by comparing Real GDP and Nominal GDP.
Formula: \[ \text{GDP Deflator} = \left( \frac{\text{Nominal GDP}}{\text{Real GDP}} \right) \times 100 \]
Example:
Interpretation:
- In 2010, the GDP deflator is 100, meaning the base year price level.
- In 2015, the GDP deflator rises to 150, indicating a 50 percent increase in price level, despite no change in output.
Conclusion: The GDP deflator is a useful measure of inflation, showing how much of the GDP growth is due to price changes rather than real output growth.