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CPI – Consumer Price Index

CPI - Consumer Price Index

The consumer price index (CPI) is metric that denotes prices of goods and services including food items, transportation, medical care, and others used by individuals in a country during a specific time period. The metric is calculated by taking weighted average prices of list of goods and services. Weights are based on the importance of the goods and services in a particular country.

Explanation of Consumer Price Index - CPI

Changes in the CPI reflect change in cost of living during a particular period. Rising CPI level denotes increased costs of living. The opposite is the case with decreasing CPI level. Government agencies periodically calculate and publish CPI levels. They prepare sub indexes for different categories of goods that are aggregated to show the overall consumer price index.

Annual change in CPI is used to gauge the inflation level in a country. This metric is one of the most closely monitored metrics in a country that reflects general economic condition in a country. Moderate increase in annual CPI is not bad for the economy.

In fact, manufacturers are encouraged by the increase in CPI or inflation levels to increase their production levels. On the contrary, decreasing CPI levels, also known as deflation, results in general slowdown of the economy as manufacturers do not have the incentive to increase the production. Most countries try to avoid this through taking certain monetary measures such as using negative interest rate policies.

Gaining economic insight is difficult from looking at raw CPI levels as it does not tell the changes that have occurred due to changing seasonal patterns or economic conditions. This drawback can be overcome by looking at seasonally adjusted CPI levels that eliminates the changes due to seasonal effects that happen in the same period of time and also about the same extent every year. Some of the factors that are adjusted include production cycles, holidays, and weather conditions.

In the US, the Bureau of Labor Statistics publishes two main types of CPI statistics. These include the CPI-W, which is the consumer price index for urban clerical workers and wage earners, and C- CPI-U that refers to chained consumer price index of all urban consumers. The latter better reflects the overall inflation levels in the country as it accounts for more than 85% of the total population.


Further Reading


CPI vs. PPI: Which Drives Which?
en.cnki.com.cn [PDF]
… 200120,China);Inflation Regulation and the Reversal Relationship between CPI and PPI … on Asymmetric Demand and Price Determined Mechanism[J];China Industrial Economics;2008- 11 … Implications for Monetary Policy Framework[J];Studies of International Finance;2008-10 …

Exploring the Relationship between PPI and CPI <span style=[J]' src='/thumbnails/?img=http%3A%2F%2Fen.cnki.com.cn%2FArticle_en%2FCJFDTotal-TJYJ200502004.htm' />Exploring the Relationship between PPI and CPI [J]
en.cnki.com.cn [[J]' href='https:/api.miniature.io/pdf?url=en.cnki.com.cn%2FArticle_en%2FCJFDTotal-TJYJ200502004.htm'>PDF]
… 200120,China);Inflation Regulation and the Reversal Relationship between CPI and PPI … on Asymmetric Demand and Price Determined Mechanism[J];China Industrial Economics;2008- 11 … Implications for Monetary Policy Framework[J];Studies of International Finance;2008-10 …

Explaining international stock correlations with CPI fluctuations and market volatilityExplaining international stock correlations with CPI fluctuations and market volatility
www.sciencedirect.com [PDF]
… 200120,China);Inflation Regulation and the Reversal Relationship between CPI and PPI … on Asymmetric Demand and Price Determined Mechanism[J];China Industrial Economics;2008- 11 … Implications for Monetary Policy Framework[J];Studies of International Finance;2008-10 …

A new application of the support vector regression on the construction of financial conditions index to CPI predictionA new application of the support vector regression on the construction of financial conditions index to CPI prediction
www.sciencedirect.com [PDF]
… 200120,China);Inflation Regulation and the Reversal Relationship between CPI and PPI … on Asymmetric Demand and Price Determined Mechanism[J];China Industrial Economics;2008- 11 … Implications for Monetary Policy Framework[J];Studies of International Finance;2008-10 …

A Query to the Paper" CPI vs. PPI: Which Drives Which"<span style=[J]' src='/thumbnails/?img=http%3A%2F%2Fen.cnki.com.cn%2FArticle_en%2FCJFDTotal-JJYJ201005011.htm' />A Query to the Paper" CPI vs. PPI: Which Drives Which"[J]
en.cnki.com.cn [[J]' href='https:/api.miniature.io/pdf?url=en.cnki.com.cn%2FArticle_en%2FCJFDTotal-JJYJ201005011.htm'>PDF]
… 200120,China);Inflation Regulation and the Reversal Relationship between CPI and PPI … on Asymmetric Demand and Price Determined Mechanism[J];China Industrial Economics;2008- 11 … Implications for Monetary Policy Framework[J];Studies of International Finance;2008-10 …

WILL INTERNATIONAL COMMODITY PRICES AFFECT CHINESE CPI——ANALYSIS BASED ON THE BVAR MODEL <span style=[J]' src='/thumbnails/?img=http%3A%2F%2Fen.cnki.com.cn%2FArticle_en%2FCJFDTotal-JJLL200908005.htm' />WILL INTERNATIONAL COMMODITY PRICES AFFECT CHINESE CPI——ANALYSIS BASED ON THE BVAR MODEL [J]
en.cnki.com.cn [[J]' href='https:/api.miniature.io/pdf?url=en.cnki.com.cn%2FArticle_en%2FCJFDTotal-JJLL200908005.htm'>PDF]
… 200120,China);Inflation Regulation and the Reversal Relationship between CPI and PPI … on Asymmetric Demand and Price Determined Mechanism[J];China Industrial Economics;2008- 11 … Implications for Monetary Policy Framework[J];Studies of International Finance;2008-10 …

The Path Analysis of China's CPI before and after the Financial Crisis——The empirical studies Based on theory of Structure Change <span style=[J]' src='/thumbnails/?img=http%3A%2F%2Fen.cnki.com.cn%2FArticle_en%2FCJFDTotal-TQYG201001014.htm' />The Path Analysis of China's CPI before and after the Financial Crisis——The empirical studies Based on theory of Structure Change [J]
en.cnki.com.cn [[J]' href='https:/api.miniature.io/pdf?url=en.cnki.com.cn%2FArticle_en%2FCJFDTotal-TQYG201001014.htm'>PDF]
… 200120,China);Inflation Regulation and the Reversal Relationship between CPI and PPI … on Asymmetric Demand and Price Determined Mechanism[J];China Industrial Economics;2008- 11 … Implications for Monetary Policy Framework[J];Studies of International Finance;2008-10 …

Using Engel Curves to estimate CPI bias in a small, open, inflation-targeting economyUsing Engel Curves to estimate CPI bias in a small, open, inflation-targeting economy
www.tandfonline.com [PDF]
… 200120,China);Inflation Regulation and the Reversal Relationship between CPI and PPI … on Asymmetric Demand and Price Determined Mechanism[J];China Industrial Economics;2008- 11 … Implications for Monetary Policy Framework[J];Studies of International Finance;2008-10 …

Inflation Regulation and the Reversal Relationship between CPI and PPI——Positive Research Based on Asymmetric Demand and Price Determined Mechanism <span style=[J]' src='/thumbnails/?img=http%3A%2F%2Fen.cnki.com.cn%2FArticle_en%2FCJFDTotal-GGYY200811005.htm' />Inflation Regulation and the Reversal Relationship between CPI and PPI——Positive Research Based on Asymmetric Demand and Price Determined Mechanism [J]
en.cnki.com.cn [[J]' href='https:/api.miniature.io/pdf?url=en.cnki.com.cn%2FArticle_en%2FCJFDTotal-GGYY200811005.htm'>PDF]
… 200120,China);Inflation Regulation and the Reversal Relationship between CPI and PPI … on Asymmetric Demand and Price Determined Mechanism[J];China Industrial Economics;2008- 11 … Implications for Monetary Policy Framework[J];Studies of International Finance;2008-10 …

Using Engel's Law to estimate CPI biasUsing Engel's Law to estimate CPI bias
pubs.aeaweb.org [PDF]
… 200120,China);Inflation Regulation and the Reversal Relationship between CPI and PPI … on Asymmetric Demand and Price Determined Mechanism[J];China Industrial Economics;2008- 11 … Implications for Monetary Policy Framework[J];Studies of International Finance;2008-10 …


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