Using GDP to determine inflation can lead to a confusing analysis. Most who are not familiar with the calculation do not realize that the GDP, or gross domestic product, only considers products sold from a country and not the value of imports. Calculating GDP involves finding both the real GDP and the nominal GDP.
Calculating Inflation. The numbers that make up the GDP deflator are compiled by the Bureau of Labor Statistics and are calculated on a quarterly basis. The GDP deflator is defined as the nominal GDP divided by the real GDP multiplied by 100.
If not available, calculate it with the formula for GDP deflator. This is equal to division between the nominal GDP and the real GDP for a specific year. To calculate the inflation rate using GDP deflator for a certain year, the previous year's GDP is also required. Use the inflation calculation formula
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image from Wikipedia. Now let's dig in a little deeper to understand how the GDP deflator represents inflation. (nominal GDP/real GDP) is equivalent to the percentage that prices have risen since the year being measured against + 1. for instance, ...
The CPI and GDP deflator tell us how high prices are relative to a base year, but the rate of inflation can be used to express the change in price level between 2 years when neither is the base year. The rate of inflation is calculated by using the basic percentage change formula with
GDP Deflator – measures the prices of all goods and services (GDP). The price index on its own does not give the inflation rate but it can be used to calculate the inflation rate. Let's use the Consumer Price Index as an example as is the most often used index to calculate the inflation rate. An example of how this works is below.
Nominal GDP is GDP evaluated at current market prices. Therefore, nominal GDP will include all of the changes in market prices that have occurred during the current year due to inflation or deflation.Inflation is defined as a rise in the overall price level, and deflation is defined as a fall in the overall price level.
The Inflation Rate is a measurement of the rise of general price level over a period of time. It’s usually calculated for a year, quarter or month. That is to say the Inflation Rate is a decrease of a purchasing power of currency. The higher the Inflation Rate is, the fewer goods or services you can buy for a unit of currency.
The Formula for Calculating Inflation. The formula for calculating the Inflation Rate using the Consumer Price Index (CPI) is relatively simple. Every month the Bureau of Labor Statistics (BLS) surveys thousands of prices all over the country and generates the CPI or (Consumer Price Index). If you don't know it, you can find it here: Consumer Price Index 1913-Present.