GDP nowcasting with ragged‐edge data: a semi‐parametric modeling

GDP nowcasting with ragged‐edge data: a semi‐parametric modeling

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Article ID: iaor20101929
Volume: 29
Issue: 1-2
Start Page Number: 186
End Page Number: 199
Publication Date: Jan 2010
Journal: Journal of Forecasting
Authors: , ,
Keywords: forecasting: applications
Abstract:

This paper formalizes the process of forecasting unbalanced monthly datasets in order to obtain robust nowcasts and forecasts of quarterly gross domestic product (GDP) growth rate through a semi‐parametric modeling. This innovative approach lies in the use of non‐parametric methods, based on nearest neighbors and on radial basis function approaches, to forecast the monthly variables involved in the parametric modeling of GDP using bridge equations. A real‐time experience is carried out on euro area vintage data in order to anticipate, with an advance ranging from 6 to 1 months, the GDP flash estimate for the whole zone.

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