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SDDS
Special Data
Dissemination Standard

Date of last update: 11/30/2001

EXCHANGE RATES

Category Provider's Data

Contact Person

João Roberto Valiante Guimarães

Organization

Banco Central do Brasil, Departamento de Operação das Reservas Internacionais, Divisão de Câmbio, Subdivisão de Mercado de Câmbio
SBS Qd.3, Ed. Sede, Bl. B, 5º andar
Brasília (DF) - Brasil
CEP 70.074-900

Phone Number

55 61 321-7477

Fax Number

55 61 3414-3246

E-mail

gabin.depin@bcb.gov.br

 

Description
The Data: Coverage, Periodicity, and Timeliness

Coverage characteristics

Data are published on:
  1. The reference exchange rate for the US dollar, known in the market as the PTAX rate, which is the average of effective rates of transactions in the interbank market, weighted by volume of transactions. Transactions closing at rates that diverge most from the market average (outliers) and transactions evincing artificial price formation or contrary to regular and sound market practices are excluded from the calculations.
  2. Daily par values of the real in relation to about 141 currencies and units of account of international organizations, including SDRs. The par value is calculated on the basis of the prices of these currencies in relation to the U.S. dollar quoted by the Reuters and Bloomberg agencies, and the PTAX rate for the U.S. dollar.

Bid and offer rates of spot prices and future prices are published.

Periodicity

Daily for the PTAX and futures prices.

Timeliness

By close of business on the reference date (after 7:00 PM Local time).
Access by the Public

Advance dissemination of release calendar

Not applicable. Data are published on a daily basis.

Simultaneous release to all interested parties

The relevant information is published in Portuguese on the Central Bank of Brazil page on the Internet: http://www.bcb.gov.br/mPag.asp?perfil=1&cod=294&codP=956&idioma=P

Data are also released through the Central Bank Information System (SISBACEN), which can be freely accessed using the access program available for download at (pages in Portuguese)
http://www.bcb.gov.br/?SISBACEN

Integrity

Dissemination of terms and conditions under which official statistics are produced, including those relating to confidentiality of individual responses

The Central Bank of Brazil compiles and publishes monetary and financial statistics pursuant to the legislation in force, specifically the Law establishing the Central Bank (Law Nr. 4595 of Dec. 31st, 1964) and the National Monetary Council resolutions, governing the generation and release of data and information, in particular with regard to the confidentiality of data.

The Central Bank guarantees the confidentiality of the data in observance of the established in Article 38 of the Law Nr. 4595.

The Law Nr. 4595, the National Monetary Council resolutions, and other rules issued by the Central Bank of Brazil, as well as other legislation, can be found in Portuguese on the Central Bank's Internet page:

http://www.bcb.gov.br/mPag.asp?cod=106&Perfil=1&codP=0

These laws are available to the public in Portuguese at the Internet page of the Presidency of the Republic, under search of decrees and laws

http://www.planalto.gov.br.

Identification of internal government access to data before release

Authorities outside the Central Bank are not apprised of information before it is released through Central Bank Information System (SISBACEN).

Identification of ministerial commentary on the occasion of statistical releases

No commentary is attached to the release of the data.

Provision of information about revision and advance notice of major changes in methodology

The data are final when first released.

The methodology used has not been changed for several years. Any changes in methodology will be made public in a timely fashion.

Quality

Dissemination of documentation on methodology and sources used in preparing statistics

The methodology is regulated in the "Comunicado 006815" of June 28, 1999, which can be found in Portuguese at
http://www5.bcb.gov.br/normativos/principal.asp?id=buscanorma

Use:

  • document number: 006815
  • type of document: Comunicado

Press: pesquisa

Dissemination of component detail, reconcilliations with related data, and statistical frameworks that support statistical cross-checks and provide assurance of reasonableness

The Central Bank Foreign Exchange Bulletin  is published in Portuguese and available only on the Internet and contains the daily and the monthly exchange rate series of 158 currencies since 1985 at
www.bcb.gov.br/mPag.asp?Perfil=1&cod=294&codP=768&idioma=p

The Central Bank bulletins are also released through SISBACEN every day with opening prices, opening bulletin - released generally between 9:20 AM and 9:40 AM Local time-, and interim bulletins, every half-hour, throughout the daily trading period (from 10:00 am to 5:00 p.m. Local time), for the US dollar. The opening price is that of the first trade recorded for the day on the interbank market. If there is no trade by the deadline for release, the spread (bid/ask) indicator then in force on the market is used. After 7:00 p.m. Local time, the closing bulletin (Boletim de Taxas de Câmbio) with the PTAX rate (as specified in "The Data: Coverage, Periodicity, and Timeliness") is released.

The bulletins (Boletim de Taxas de Câmbio) give also the par value of the Real in relation to 19 other major currencies, whose price in US dollars are obtained from Reuters, or, if not available there, from Bloomberg or another agency that publishes market prices.

The bulletins (Boletim de Taxas de Câmbio) are published on the electronic system (SISBACEN), which can be freely accessed via telephone using the access program available for download at (pages in Portuguese)
http://www.bcb.gov.br/?SISBACEN

Notes

Summary page on observance and transition plan

 

Dissemination Formats
Hardcopy
X   News release  
    Weekly bulletin  
  X Monthly bulletin

The Central Bank Bulletin is published monthly in Portuguese and in English and available free of charge at the Central Bank's library.

For a paid annual subscription, address you request to:

DEMAP/DISUD
SBS Qd.3, Ed. Sede, Bl. B, 2º subsolo
70.074-900 Brasília (DF) - Brasil
Telephone number 55 61 3414-3165
  55 61 3414-1392
Fax number: 55 61 3414-1359
e-mail: demap.disud@bcb.gov.br

The cost is R$ 19.05 per issue.

    Quarterly bulletin  
    Other  
Electronic media
X X On-line country bulletin board or database Information on the PTAX bid and offer rate, the opening bulletin (Boletim de Taxas de Câmbio) and the interim bulletins (Boletim de Taxas de Câmbio) of the Central Bank are available on line in Portuguese on Central Bank Information System (SISBACEN).

Proper software for accessing SISBACEN is free of charge and can be downloaded from (pages in Portuguese)
http://www.bcb.gov.br/?SISBACEN

Aditional information can be obtained on Central Bank's website.

  X Internet address http://www.bcb.gov.br/mPag.asp?perfil=1&cod=294&codP=768&idioma=P
in Portuguese.

The closing prices of about 141 currencies (PTAX rate) in the format of one currency in a given period and all currencies on a given date, as well as a table with the characteristics and codes of the currencies in question, can be obtained on this site.

    Diskette  
    CD ROM  
    Other  

 

Summary Methodology
Analytical framework, concepts, definitions, and classifications (including reference to applicable guidelines)
The exchange rate for the U.S. dollar, known on the market as the PTAX rate, is the average of the effective rates of transactions on the interbank market, with settlement two business days after the transaction date, weighted by transaction volumes. Transactions closing at rates that diverge most from the average on the market (outliers) are eliminated from the calculation. The eliminated portion does not exceed 5 percent of the volume traded and is determined based on a symmetry test, using the Pearson asymmetry coefficient, establishing the upper and lower rates for elimination. If one or more transactions show evidence of artificial price formation or are contrary to regular and sound market practices, they will also be eliminated.

The par values of other currencies and units of account in relation to the real are determined based on the price of these currencies in U.S. dollars published by Reuters and Bloomberg at the closing of the domestic market, and the PTAX rate for the U.S. dollar, determined as indicated in the preceding paragraph.

Scope of the data (coverage of, e.g., institutional units, transactions and stock, commodities, industries, and geographic areas)
In addition to the U.S. dollar exchange rate, par values for the about 141 other currencies and units of account of international organizations, specifically the currencies of the G-7 countries, the European Union, and MERCOSUR; special drawing rights; and the unit of value of the Bank and of the African Development Fund.

Operations included in the calculation of the PTAX rate are carried out by financial institutions authorized to deal in foreign exchange by the Central Bank of Brazil, which represent practically all banking institutions in operation in the country and, therefore, reflect prevalent conditions throughout the country.

Accounting conventions (e.g. time of recording, valuation methods)
The PTAX rate is calculated daily, after the closing of the domestic foreign exchange market (7:00PM, Brazilian time).
Nature of the basic data (e.g., administrative records, surveys censuses, combinations of these)
The database is made up of the foreign exchange contracts of all interbank foreign exchange transactions. Pursuant to the rules governing the domestic exchange market, the foreign exchange contracts of all transactions are recorded in the electronic system (SISBACEN), which links the Central Bank of Brazil to all financial institutions in operation in the country. These virtual contracts include, among other information, the participating institutions, the agreed exchange rate, the volume of foreign currency, and the date of settlement of the transaction.
Compilation practices (e.g., weighting schemes, imputation methods, balancing/cross-checking techniques)
The PTAX rate is the average of the effective rate of each interbank transaction on the exchange market, weighted by the volume of transactions and excluding transactions whose rates exceed the limits established in a symmetry test for the series of transactions.
Other aspects (e.g., seasonal adjustment, disclosure avoidance, base years, reference years, transformations from fiscal to calendar years)
In the calculation of the PTAX rate there are no adjustments or conversions, except for those described above.