What is the difference between headline and core inflation?

Explore the difference between headline and core inflation, two distinct measures used to assess price changes in an economy. Understand their significance in economic analysis.


Headline inflation and core inflation are two different measures of inflation used by economists and policymakers to analyze price trends in an economy. They differ primarily in the items they include and their objectives:

  1. Headline Inflation:

    • Headline inflation, also known as "all-items" or "comprehensive" inflation, includes the entire basket of goods and services used to calculate the Consumer Price Index (CPI) or another inflation index. This basket typically covers a wide range of consumer goods and services, including food, energy, housing, transportation, healthcare, and more.
    • Headline inflation provides a broad and comprehensive view of overall price changes in the economy, making it useful for assessing the cost of living for the average consumer.
    • It is affected by all price movements in the economy, including both volatile and non-volatile items. As a result, headline inflation can be more sensitive to short-term fluctuations, such as changes in energy prices.
  2. Core Inflation:

    • Core inflation, on the other hand, is a narrower measure of inflation that excludes certain volatile or transitory components of the CPI basket. The most common exclusions in core inflation calculations are food and energy prices.
    • Core inflation is designed to provide a more stable and persistent measure of underlying price trends in the economy. By removing the influence of highly variable components like food and energy, core inflation is thought to better capture the "core" or "fundamental" inflationary pressures.
    • Economists and policymakers often use core inflation to assess the long-term trend in price movements and to make more informed decisions about monetary policy. It helps central banks focus on underlying inflation when setting interest rates.

Key differences between headline and core inflation:

  • Components Included: Headline inflation includes all items in the price index basket, while core inflation excludes certain volatile items, typically food and energy.

  • Sensitivity: Headline inflation can be more sensitive to short-term fluctuations in the prices of items like oil and food, which can be influenced by supply shocks, geopolitical events, or weather conditions. Core inflation tends to be more stable over time.

  • Policy Considerations: Policymakers often focus on core inflation when making decisions about monetary policy, as it provides a better gauge of long-term inflationary pressures. However, they also monitor headline inflation because it reflects the cost of living for consumers and can have immediate effects on household budgets.

  • Communicating Inflation Trends: Economists and central banks may use both headline and core inflation to communicate different aspects of inflation trends to the public and policymakers. For example, they might report that headline inflation has increased due to rising energy prices but that core inflation remains relatively stable.

In summary, the main difference between headline and core inflation is the inclusion or exclusion of certain volatile items, primarily food and energy, in the calculation. Both measures serve different purposes, with headline inflation providing a comprehensive view of overall price changes and core inflation offering a more stable measure of underlying inflationary trends.

Headline vs. Core Inflation: Understanding the Distinction.

Headline inflation is the overall inflation rate, as measured by the Consumer Price Index (CPI). It includes the prices of all goods and services consumed by households, including food and energy. Core inflation is a measure of inflation that excludes the prices of food and energy.

Food and energy prices are often volatile, and they can fluctuate significantly due to factors such as weather events and geopolitical tensions. This volatility can make it difficult to get an accurate picture of the underlying trend in inflation. Core inflation is a more stable measure of inflation, and it is often used by economists and central banks to track inflation and make economic policy decisions.

Here are some key differences between headline inflation and core inflation:

  • Headline inflation is more volatile than core inflation. This is because food and energy prices are more volatile than the prices of other goods and services.
  • Core inflation is a better measure of the underlying trend in inflation. This is because it excludes food and energy prices, which can be volatile due to factors beyond the control of central banks.
  • Central banks typically focus on core inflation when making economic policy decisions. This is because core inflation is a more stable measure of inflation, and it is less likely to be affected by temporary shocks.

Here is an example to illustrate the difference between headline inflation and core inflation:

Suppose that inflation is 5% in a given year. However, if food and energy prices have increased by 10%, then headline inflation will be 5%, while core inflation will be 0%. This is because core inflation excludes food and energy prices.

In this example, core inflation is a more accurate measure of the underlying trend in inflation. Headline inflation is higher than core inflation because of the temporary increase in food and energy prices.

Overall, headline inflation and core inflation are two different measures of inflation. Headline inflation is more volatile and includes the prices of food and energy, while core inflation is more stable and excludes the prices of food and energy. Central banks typically focus on core inflation when making economic policy decisions.