Seasonal adjustment in the 80's: CS11-614/87-12E-PDF

some problems and solutions /

"Most statistical bureaus do not apply uniform practices for the seasonal adjustment of related series and, consequently, the presence of inconsistencies may occur. This lack of uniformity results mainly from the fact that: (1) the seasonal adjustment method, the X-11-ARIMA, can be used in four different modes (each mode producing different current seasonally adjusted values of the same series); and (2) that most key economic and social indicators are large aggregates and the results differ whether they are seasonally adjusted directly or indirectly (through the aggregation of each of the seasonally adjusted components). Other problems faced currently by Statistics Canada and other statistical bureaus which will also be discussed in this paper are: the smoothing of highly irregular seasonally adjusted series, the estimation of trading day variation and the estimation of Easter effect"--Abstract.

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Department/Agency Statistics Canada. Methodology Branch.
Title Seasonal adjustment in the 80's
Subtitle some problems and solutions /
Series Title Working paper ;
Publication Type Series - View Master Record
Language [English]
Format Electronic
Electronic Document

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Note Digitized edition from print [produced by Statistics Canada]. "Working Paper TSRA-87-012E."
Date [1987].
Number of Pages 25, [3] p. :
Catalogue Number
  • CS11-614/87-12E-PDF
Departmental Catalogue Number 11-614E no. 87-12
Subject Terms Statistical analysis, Methodology