Forecasting when pattern changes occur beyond the historical data

Robert Carbone, Spyros Makridakis

Research output: Contribution to journalArticle

26 Citations (Scopus)


Forecasting methods currently available assume that established patterns or relationships will not change during the post-sample forecasting phase. This, however, is not a realistic assumption for business and economic series. This paper describes a new approach to forecasting which takes into account possible pattern changes beyond the histoncal data. This approach is based on the development of two models: one short, the other long term. These models are then reconciled to produce the final forecasts by setting certain parameters as a function of the number, extent, and duration of pattern changes that have occurred in the past. The proposed method has been applied to the 111 series used in the M-Competition. Post-sample forecasting accuracy compansons show the superiority of the proposed approach over the most accurate methods in the A/-Competition.

Original languageEnglish
Pages (from-to)257-271
Number of pages15
JournalManagement Science
Issue number3
Publication statusPublished - 1 Mar 1986

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