DISSEMINATION STANDARDS BULLETIN BOARD (DSBB)

5.1.1 Statistical presentation

• The Consumer Price Index (CPI) is a Laspeyres indexï¼?016=100）covering the whole national territory to measure the price movements of goods and services purchased by households for consumption purpose.
• The CPI covers 368 representative goods or services. Item prices are collected monthly in 17 cities or counties. Approximately 36,000 prices quotes are obtained each month, and the quotes are obtained mostly by personal interview.
• The weights are based on the 2016 Household Final Consumption Expenditure of National Income, and will be updated annually from 2018.
• Seasonally adjusted and unadjusted indices are simultaneously provided.

4.1.1 Periodicity

Monthly

4.1.2 Timeliness

Around the fifth working day (subject to postponement due to Chinese Lunar New Year or other consecutive public holidays) after the end of the reference month.

5.1.3 Advance release calendar

• In principle, the press release is made around the fifth working day (subject to postponement due to Chinese Lunar New Year or other consecutive public holidays) after the end of the reference month. The date of the next release is announced in each news release.
• A schedule of the precise release dates for the Calendar year is listed on the website:

5.1.4 Simultaneous release

• Subject to embargo, no information is released prior to the official release. The data are released to all interested parties at 4:00 P.M. (a press conference is held at 4:00 P.M) on the release day.
• The reference data are also available on the website:

  https://eng.stat.gov.tw/lp.asp?ctNode=2410&CtUnit=1016&BaseDSD=7

• The e-book ?œPrice Statistics Monthly??is made available immediately at the time of release, please see

  https://eng.stat.gov.tw/lp.asp?ctNode=1559&CtUnit=713&BaseDSD=7

0.1.1 Responsibility for collecting, processing, and disseminating statistics

• All statistics collected, compiled and published by the DGBAS are governed by the Statistics Act and the Enforcement Rules.
• The data on the price indices are disseminated by the DGBAS as a service to the public.

1.2.2 Internal governmental access to statistics prior to release

The information published in the press release and advance copies of the CPI news release are provided to the President, the Premier, the Vice Premier and the Governor of Central Bank of the R.O.C before official release.

1.2.3 Attribution of statistical products

No ministerial commentary is released with these data. Bureau of Statistics, DGBAS, Executive Yuan provides its own analytical commentary with these data releases.

4.3.1 Revision schedule

• All seasonally adjusted and unadjusted CPIs are routinely subject to revision for up to 3 months after original publication. Indices are revised to reflect late reports and corrections received from respondents. A final estimate will be issued in 3 months after initial publication. Besides, the seasonally adjusted monthly data for the previous 5 years are revised at the time of the release of the April CPI.
• Major program changes are made on CPI re-basing every 5 years. The weights will be updated annually from 2018. As soon as the re-basing process is finished, the new results will be announced in the upcoming February with data of January.

5.2.1 Dissemination of documentation on concepts, scope, classifications, basis of recording, data sources, and statistical techniques

Detailed methodological document can be obtained on the website https://eng.stat.gov.tw/public/data/dgbas03/bs3/book/descriptione.pdf

4.2.2 Temporal consistency

The "Price Index" news release publishes a monthly analysis of price movements and summary tables on the CPI.

The e-book ?œPrice Statistics Monthly??is made available immediately at the time of release, disseminates detailed monthly data : (1) basic groups; (2) commodity and service groups; (3) frequency of purchase groups; (4) other special groups; (5) time series of CPI.