2013年-IMF国际货币组织全球_Malawi_Technical_Assistance_Report_on_the_Price_Statistics_Mission_22页_544kb

Summary of the Malawi Technical Assistance Report on the Price Statistics Mission

Core Content

This report outlines the findings and recommendations from a technical assistance mission to Malawi, conducted from September 16 to 27, 2013, aimed at improving the country's price statistics, particularly the Import and Export Price Indexes (MXPI) and the Producer Price Index (PPI). The mission was undertaken in collaboration with the Malawi National Statistics Office (MNSO) and the IMF's African Department (AFR), with the goal of transitioning from unit value-based pricing to direct survey-based pricing for MXPI and reviewing the new PPI.

Main Objectives

• To improve the accuracy and reliability of price statistics by moving to direct pricing for MXPI.
• To review and enhance the new PPI.
• To develop a methodology for compiling the indexes using survey data.
• To provide training to MNSO staff on price survey design and index compilation.
• To document all procedures and methodologies developed during the mission.

Key Findings and Recommendations

1. MXPI Development

• The initial MXPI was planned to be experimental, using Customs unit values as price indicators. However, the credibility of these unit values was found to be insufficient, with over 80% of the selected series deemed non-credible for measuring pure price change.
• The main issues with unit values were:
  • Compositional mix of products leading to volatility in price indicators.
  • Incorrect quantity data, including misreporting and inconsistent units of measurement.
• The MNSO was advised to initiate price surveys before any index compilation can proceed.
• A funding proposal was developed to support the implementation of these surveys.
• A sample of 411 8-digit HS import items was selected, but after removing duplicates and pruning smaller items, the final sample included 165 importers.
• It was recommended that import and export price surveys be initiated by the end of 2013 to ensure both indexes can share the same reference base period of 2013.

2. Methodology for Price Surveys

• A generic questionnaire was developed for both import and export price surveys.
• These questionnaires were designed to be customized for each establishment based on product specifications, units, countries of origin/destination, and transaction currency.
• Cut-off sampling techniques were used to select the sample of importers, and a similar approach will be used for exporters.
• Training was provided on:
  • Index concepts and methodologies.
  • Conducting initialization interviews.
  • Quarterly price collection and data editing.

3. PPI Review and Communication Strategy

• The new PPI was reviewed, and a communication and dissemination strategy was developed to explain its concepts and relationship with the CPI.
• The PPI is based on ex-factory prices and is intended to measure basic prices for manufacturing and utilities output.
• A two-stage Jevons aggregation formula was proposed for PPI compilation.
• The PPI should be published quarterly, with data down to the 2-digit HS Chapter level and annual data to the 8-digit level.
• The publication format should include:
  • Quarterly index numbers.
  • Quarter-to-quarter percentage changes.
  • Graphs showing index trends.
• The website and email distribution of the PPI were also planned.

4. CPI Rebasement and Linking

• The mission addressed the linking of the new CPI (based on COICOP classification) with the old CPI (based on CPC classification) to ensure continuity.
• The MNSO recompiled the monthly CPI retrospectively for 2010 and 2011, but this was resource-intensive.
• The MNSO indicated that it could not recompile data for earlier years due to severe resource constraints.
• AFR requested an Excel copy of the revised CPI series for 2010 and 2011, which would require direct contact with the Commissioner of Customs.

Key Milestones and Timetable

• October 2013: Derive XPI structure, composition, and weighting pattern.
• October 2013: Select and analyze the sample of exporters.
• End of December 2013: Conduct MPI and XPI initialization interviews (subject to funding).
• End of December 2013: Customize the PPI processing system for MPI and XPI.
• Ongoing: Quarterly price collection, editing, and index calculation.

Conclusion

• The transition from unit values to direct pricing is essential for accurate and reliable price statistics.
• Training and field interviews are critical for the success of the MXPI and PPI projects.
• A clear communication strategy is necessary to ensure the proper understanding and use of the new PPI.
• The CPI rebase and linking with the old series will support long-term data continuity.
• Funding is required to support the implementation of the price surveys and the subsequent index compilation.

Appendices Overview

• Appendix I: MXPI project tasks and timetable.
• Appendix II: Funding proposal for import and export price surveys.
• Appendix III: Training program for price statistics.
• Appendix IV: Long-term system for price indexes.

Abbreviations

• MXPI: Import and Export Price Indexes
• MPI: Import Price Index
• XPI: Export Price Index
• PPI: Producer Price Index
• CPI: Consumer Price Index
• HS: Harmonized System of Tariffs and Trade
• COICOP: Classification of Individual Consumption by Purpose
• CPC: Central Product Classification
• K: Malawi Kwacha
• MNSO: Malawi National Statistics Office
• AFRITAC: East Africa Technical Assistance Center of the IMF

Summary of Key Challenges

• Data quality issues with Customs unit values.
• Resource constraints limiting the ability to recompile historical CPI data.
• Complexity of developing an MPI compared to an XPI.
• Need for timely and accurate data collection to ensure index consistency and reliability.