Qué es el IPC y cómo se calcula - Explicado para principiantes!

Understanding the Consumer Price Index (CPI)

What is CPI?

• The Consumer Price Index (CPI) reflects the price level of essential products and services, indicating the cost of living. It is derived from periodic surveys conducted by national statistics institutes and similar entities.

• CPI serves as a crucial measure for assessing inflation levels and variations in living costs, influencing economic policies such as minimum wage adjustments and international comparisons.

How is CPI Calculated?

• To calculate CPI, one must define a base year; in this case, 2021 is chosen. The price of a basket of essential goods in this year is assigned a CPI value of 100.

• The formula used to calculate CPI for subsequent years is:

[

textCPI = left(fractextPrice of the basket in the year under studytextPrice of the basket in the base yearright) times 100

]

This ensures that the base year's CPI remains at 100.

Example Calculation

• For example, if the price of a basket was $25 in 2021:

• In 2022, if it rises to $60:

• textCPI = left(60/25right) times 100 = 240

• In 2023, if it further increases to $80:

• textCPI = left(80/25right) times 100 = 320

Understanding Inflation Rates

• With calculated CPIs for each year, one can determine inflation rates using:

[

textInflation rate = left(fractextCPI of current year - textCPI of previous yeartextCPI of previous yearright) times 100

]

• For instance:

• Inflation for 2022 would be:

• (240 - 100)/100 * 100 = 140%

• Inflation for 2023 would be:

• (320 - 240)/240 * 100 = 33%