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Dissemination Standards Bulletin Board Special Data Dissemination Standard (AS PROVIDED TO THE IMF BY THE RESPECTIVE COUNTRY)   Peru Price index: Consumer prices Last Posted: Oct-10-2008 Last Certified: Oct-2-2008 Last Updated: Dec-28-2007 Contact Person(s)          Printer Friendly Page   Mr. José Garcia, Director Técnico, Dirección de Indicadores Económicos, Instituto Nacional de Estadísticas e Informática (INEI), Av. General Garzón 654 - 658, Jesús María, Lima, Perú   Phone : 51 1 4334223, extension 308   Fax : 51 1 4311340   Email : jgarcia@inei.gob.pe    Ms. Lucy Vallejos Medina, Jefe de Departamento, Estadísticas de Precios, Subgerencia de Estadísticas Macroeconómicas, Gerencia de Información y Análisis Económico, Banco Central de Reserva del Perú (BCRP), Jiron Miroquesada 441, Lima 1, Perú   Phone : 51 1 613 2000, extension 3981   Fax : 51 1 613 2544   Email : lucy.vallejos@bcrp.gob.pe  Dissemination Formats Summary Methodology Access National Summary Data Page Cross-country comparisons: access the DSBB metadata query facility

The Data: Coverage, Periodicity, and Timeliness
Coverage characteristics	5.1.1 Statistical presentation The consumer price index (CPI), which is compiled by the National Institute of Statistics and Data Processing (INEI), is of the Laspeyres type (December 2001 base=100) and covers metropolitan Lima.   The general index presents eight major groups broken down into 31 groups, 55 subgroups, 163 headings, and 515 varieties. Approximately 40,000 prices are collected each month from 5,000 commercial establishments, including 41 markets, five supermarkets, 500 rented homes, 505 educational centers, and 210 urban and interurban transport lines.   Price data are compiled at various intervals, depending on the type of goods: prices of products sold at retail outlets are collected on Thursdays and Saturdays; prices of products sold at establishments of other types, as well as rent data, are collected once a month. Public utility rate data are updated every time the rates are changed by the provider enterprises.   The weights used to calculate the CPI are derived from the multipurpose national survey (“Encuesta Nacional de Propósitos Múltiples”—ENAPROM) conducted from October 1993 to September 1994 in Lima. These weights were changed in January 2002 as a result of a revision of the INEI methodology. The main elements of the revision were: an increase in the number of households included in the sample (single-person households and households located at each end of the range of income distribution), the incorporation of 45 new products, and the elimination of 18 outdated items, the updating of the sample of supermarkets and of brands, and the introduction of the geometric mean in the calculation of the indices of heterogeneous varieties.   The revision was aimed at ensuring that the CPI would as far as possible reflect consumption changes over the last seven years. The index base was changed from 1994 to December 2001.   The data are not seasonally adjusted.
Periodicity	4.1.1 Periodicity Monthly
Timeliness	4.1.2 Timeliness The first working day of the month after the end of the reference month.
Access by the Public
Advance dissemination of release calendar	5.1.3 Advance release calendar The Central Reserve Bank of Peru (BCRP) publishes a quarter-ahead advance release calendar, providing precise release dates, on its website (http://www.bcrp.gob.pe/English/WMetadata/Adv_Rel.htm) and in the Nota Semanal, the weekly report of the Central Bank, which is released to the public through the Central Bank website every Friday and in hard copy the following Tuesday.
Simultaneous release to all interested parties	5.1.4 Simultaneous release The INEI releases the data simultaneously to all interested parties, on the day after the end of the reference month, in the press release “Informe de Precios: Variación de los Indicadores de Precios de la Economía” (Changes in the Price Indicators of the Economy), and in the official newspaper " El Peruano". Copies of the press release can be obtained through the INEI's website: (http://www/inei.gob.pe). Data are subsequently published in the INEI's Boletin Mensual: Indicadores de Precios de la Economia.   The data are also released simultaneously to all interested parties on the first business day of the following month, on the BCRP website http://www.bcrp.gob.pe/English/WMetadata/Adv_Rel.html and in the Nota Semanal (Weekly Report), which also contains a detailed analysis of monthly developments in inflation. The Nota Semanal is posted on the BCRP website (http://www.bcrp.gob.pe) every Friday and published in hard copy the following Tuesday.
Integrity
Dissemination of terms and conditions under which official statistics are produced, including those relating to the confidentiality of individually identifiable information	0.1.1 Responsibility for collecting, processing, and disseminating statistics Instituto Nacional de Estadísticas e Informática Compilation and publication of the data are governed by the Law on the Organization and Functions of the INEI (the INEI Law—Legislative Decree 604). Price index: Consumer prices The INEI Law also establishes that it is the function of the INEI to publish the consumer price index every month. 0.1.3 Confidentiality of individual reporters' data Instituto Nacional de Estadísticas e Informática The INEI Law stipulates that data provided to the Peruvian statistics system is confidential and cannot be disclosed individually, even under administrative or judicial order. 1.1.1 Impartiality of statistics Instituto Nacional de Estadísticas e Informática The INEI Law establishes the technical autonomy of the INEI, with respect to the data compilation rules. 1.2.1 Disclosure of terms and conditions for statistical collection, processing, and dissemination Instituto Nacional de Estadísticas e Informática The INEI Law can be obtained on request (Phone: 51 1 4334223; e-mail: webmaster@inei.gob.pe).
Identification of internal government access to data before release	1.2.2 Internal governmental access to statistics prior to release Instituto Nacional de Estadísticas e Informática No officials outside the INEI have access to the data before their release to the public.
Identification of ministerial commentary on the occasion of statistical releases	1.2.3 Attribution of statistical products Instituto Nacional de Estadísticas e Informática There is no ministerial commentary accompanying the release of the data.
Provision of information about revision and advance notice of major changes in methodology	4.3.1 Revision schedule The data are final when first released and are not subject to change.
Quality
Dissemination of documentation on methodology and sources used in preparing statistics	5.2.1 Dissemination of documentation on concepts, scope, classifications, basis of recording, data sources, and statistical techniques The INEI’s Boletín Mensual: Indicadores de Precios de la Economia (Monthly Bulletin: Indicators of Prices in the Economy) and its website contain a description of the methodology and sources used in calculation of the CPI.   Further details can be found in Metodología de Cálculo del Índice de Precios al Consumidor de Lima Metropolitana (Methodology for Calculating the Consumer Price Index of Metropolitan Lima—October 2001) and in No. 2 of the Informe de Precios: Variación de los Indicadores de Precios de la Economía (Price Report: Changes in Indicators of Prices in the Economy—January 2002), available on the INEI website. (See also summary methodology)
Dissemination of component detail, reconciliations with related data, and statistical frameworks that support statistical cross-checks and provide assurance of reasonableness	4.2.1 Internal consistency The Informe de Precios: Variación de los Indicadores de Precios de la Economía disseminates data on monthly percentage changes in the general index (CPI) and in the eight major consumption groups. In addition, the general index and individual indices are published for the major groups, groups, and subgroups, as well as for those headings with the greatest positive and negative percentage changes. The INEI’s Boletín Mensual: Indicadores de Precios de la Economia has also included the general index since 1992 and average monthly prices of the principal goods and services in the economy since 1996.   The following details are published in the BCRP’s Nota Semanal:   Monthly data, starting from December 2001, on the percentage change in the CPI and its tradable and nontradable components. Underlying inflation is also published. For the CPI and underlying inflation, indices are also published, together with the annual and cumulative percentage changes for the year;   Monthly data for the last 13 months on the monthly percentage changes in: (i) underlying inflation, broken down into goods and services, with goods further broken down into food and beverages, textiles and footwear, home appliances, and other industrial goods; and services further broken down into meals taken outside the home, education, rents, health, and other services; and (ii) nonunderlying inflation, broken down into food, fuel, transportation, and public utilities; and   Monthly data for the last 13 months on the monthly percentage changes in: (i) tradable products, broken down into food, textiles and footware, fuel, home appliances, and other tradables; and (ii) nontradable products, broken down into food, services, and others. Services, for their part, are broken down into public utilities, other personal services, health services, transportation services, education services, food taken outside the home, rents, and other services.   The BCRP’s Memoria (annual report) contains annual data on inflation and presents monthly data for the last 10 years on the monthly and cumulative percentage changes in the last 12 months and annual data on the annual average percentage change in:            (i) the CPI,            (ii) tradable products,            (iii) nontradable products, and            (iv) underlying inflation. 4.2.2 Temporal consistency Monthly data have been posted on the BCRP website (http://www.bcrp.gob.pe) and the INEI website (http://www.inei.gob.pe) since January 1992 on the monthly and cumulative percentage changes in the CPI over the last 12 months.
Footnotes Last posted: Date IMF staff last posted an update to these metadata on the DSBB. Last certified: Date subscriber last officially certified the accuracy of these metadata. Last updated: Date subscriber last submitted an update of these metadata to the IMF.