How Useful Is Bagging in Forecasting Economic Time Series? A Case Study of U.S. Consumer Price Inflation

2008 ◽  
Vol 103 (482) ◽  
pp. 511-522 ◽  
Author(s):  
Atsushi Inoue ◽  
Lutz Kilian
Keyword(s):  
Time Series ◽  
Economic Time Series ◽  
Price Inflation ◽  
Economic Time

On a Simple Graphical Approach to Modelling Economic Fluctuations with an Application to United Kingdom Price Inflation, 1265 to 2005

2006 ◽  
Vol 1 (1) ◽  
pp. 103-128
Author(s):  
W. S. Chan ◽  
M. W. Ng ◽  
H. Tong
Keyword(s):  
Time Series ◽  
United Kingdom ◽  
Structural Changes ◽  
Linear Models ◽  
Stochastic Modelling ◽  
Economic Time Series ◽  
Price Inflation ◽  
Non Linear ◽  
Economic Time ◽  
The Impact

ABSTRACTStructural instability in economic time series is widely reported in the literature. It is most prevalent in such series as price indices and inflation related data. Many methods have been developed for analysing and modelling structural changes in a univariate time series model. However, most of them assume that the data are generated by one fixed type (linear or non-linear) of the time series processes. This paper proposes a strategy for modelling different segments of an economic time series by different linear or non-linear models. A graphical procedure is suggested for detecting the model change points. The proposed procedure is illustrated by modelling annual United Kingdom price inflation series over the period 1265 to 2005. Stochastic modelling of inflation rates is an important topic to actuaries for dealing with long-term index linked insurance business. The proposed method suggests dividing the U.K. inflation series into four segments for modelling. Inflation projections based on the latest segment of the data are obtained through simulations. To get a better understanding of the impact of structural changes on inflation projections we also perform a forecasting study.

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