Threshold Autoregressive Models (TAR) along with other nonlinear time series models have attracted much attention in recent years in time series analysis. TAR models have been applied to a variety of time series. It has been reported that they have a good in sample fit but like many other non-linear time series models cannot improve out of sample forecast performance. Within a controlled simulation framework, we study the forecast performance under two types of non-linearity: shift in the mean and shift in the volatility of the process. We illustrate that estimation of the lag parameter and threshold value are crucial for forecast performance. Monte Carlo results show that TAR model performs much better than a Random Walk (RW) model; however, it provides no significant improvement over a linear Autoregressive (AR) model. Conclusions on the relative forecast performance of TAR models based on a single data set can be quite different than long run (Monte Carlo) results.
Download Info
To our knowledge, this item is not available for
download. To find whether it is available, there are three
options:
1. Check below under "Related research" whether another version of this item is available online.
2. Check on the provider's web page
whether it is in fact available.
3. Perform a search for a similarly titled item that would be
available.
Length: Date of creation: Nov 1998 Date of revision: Handle: RePEc:uwo:uwowop:9910
Contact details of provider: Postal: Department of Economics, Reference Centre, Social Science Centre, University of Western Ontario, London, Ontario, Canada N6A 5C2 Phone: 519-661-2111 Ext.85228 Web page: http://economics.uwo.ca/econref/WorkingPapers/
For technical questions regarding this item, or to correct its listing, contact: ().