Forecasting Aggregated Time Series Variables: A Survey

Helmut Lütkepohl

OECD Journal: Journal of Business Cycle Measurement and Analysis, 2010, vol. 2010, issue 2, 1-26

Abstract: Aggregated times series variables can be forecasted in different ways. For example, they may be forecasted on the basis of the aggregate series or forecasts of disaggregated variables may be obtained fi rst and then these forecasts may be aggregated. A number of forecasts are presented and compared. Classical theoretical results on the relative effi ciencies of different forecasts are reviewed and some complications are discussed which invalidate the theoretical results. Contemporaneous as well as temporal aggregation are considered. JEL classifi cation : C22, C32 Key Words : Autoregressive moving-average process, contemporaneous aggregation, temporal aggregation, vector autoregressive moving-average process

Date: 2010
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Working Paper: Forecasting Aggregated Time Series Variables: A Survey (2009)
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