## Consumer Price Index (CPIx)

## Source details

**Canonical URL:** [Consumer Price Index (CPIx)](https://www.imf.org/en/capacity-development/training/icdtc/schedule/ol/2026/cpixol26-121)

## Other formats

- [Markdown version](/en/capacity-development/training/icdtc/schedule/ol/2026/cpixol26-121/index.md)
- [Structured JSON version](/en/capacity-development/training/icdtc/schedule/ol/2026/cpixol26-121/index.json)
- [Bundle manifest](/en/capacity-development/training/icdtc/schedule/ol/2026/cpixol26-121/bundle-manifest.json)

## Bibliographic details
- Session: OL 26.121
- Location: Course conducted online
- Dates: May 1, 2026 - April 15, 2027 (50 weeks)
- Delivery method: Online Training
- Primary language: French
- Status: Apply online by April 1, 2027

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### Overview
- Training Program title: Consumer Price Index (CPIx)
- Session No.: OL 26.121
- Location: Course conducted online
- Date: May 1, 2026 - April 15, 2027 (50 weeks)
- Delivery Method: Online Training
- Primary Language: French
- Target Audience: Compilers of consumer price indexes (CPIs) and users of CPI data interested in understanding key concepts and compilation issues.
- Qualifications: Some knowledge of economics and statistics or equivalent experience in CPI is helpful.

### Course Description and Scope
- Provides an overview of key CPI concepts, methods and uses.
- Covers different index number formulas and the practical implications of choosing the index number formula at lower and higher levels of aggregation.
- Discusses sources and methods for sampling:
  - sampling areas,
  - sampling items,
  - sampling outlets,
  - sampling varieties.
- Treats methods for handling missing prices:
  - treatment of temporarily missing prices,
  - treatment of permanently missing prices,
  - adjusting prices for quality changes.
- Addresses updating and linking CPI data series, including chaining and linking indexes with updated weighting structures.
- Highlights linkages to the 2025 SNA, including the related principles of scope, coverage, and valuation.
- Follows the principles and recommendations of the CPI Manual (2020).

### Topics Covered
- Defining key CPI concepts, uses, and their impact on the CPI design.
- Meeting data users' needs to ensure relevancy.
- Calculating elementary and upper-level indexes; methods for sampling areas, items, outlets, and varieties.
- Methods for handling temporarily and permanently missing prices, including adjusting prices for quality changes.
- Chaining and linking indexes with updated weighting structures.

### Course Objectives (learning outcomes)
Upon completion of the course, participants should be able to:
- Identify key uses of CPI data and explain key CPI concepts and definitions.
- Identify and explain differences between index calculation formulas.
- Define and explain the different levels of sampling in a CPI and how sampling methods are applied in practice.
- Identify and explain the different methods for the treatment of missing prices and describe how these are applied in practice.
- Update CPI weights and link old and new indexes to form continuous time series of data.

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## References

- [Online Training](https://www.imf.org/en/capacity-development/training/icdtc/delivery-methods)
- [Apply Now](https://www-ins.imf.org/TAS/signon.aspx?pkey=OL26.121F)
- [Financial Development and Financial Inclusion (FDFI)](https://www.imf.org/en/capacity-development/training/icdtc/schedule/at/2026/fdfiat26-24)

_Source: https://www.imf.org/en/capacity-development/training/icdtc/schedule/ol/2026/cpixol26-121_