Abstract
Statistics Canada’s official policy of using concurrent seasonal adjustment was established in 1975; gradually, other foreign statistical agencies followed it. The old practice for seasonally adjusting a current (monthly or quarterly) observation was to apply year-ahead seasonal factors generated from a series that ended in the month of December of the previous year. Since these projected factors were calculated ahead of the actual time they were applied, they didn’t take into account the most recent information incorporated into the series. On the other hand, the use of a concurrent seasonal factor to produce a current seasonally adjusted datum implies the use of all the data in the series up to and including the current month’s observation.
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© 1987 D. Reidel Publishing Company
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Dagum, E.B. (1987). Monthly versus Annual Revisions of Concurrent Seasonally Adjusted Series. In: MacNeill, I.B., Umphrey, G.J., Carter, R.A.L., McLeod, A.I., Ullah, A. (eds) Time Series and Econometric Modelling. The University of Western Ontario Series in Philosophy of Science, vol 36. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4790-0_11
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DOI: https://doi.org/10.1007/978-94-009-4790-0_11
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