 Threshold Autoregression for Strongly Autocorrelated Time SeriesMarkku Lanne and Pentti Saikkonen University of Helsinki, Department of Economics from Department of Economics Abstract: In some cases the unit root or near unit root behavior of linear autoregressive models fitted to economic time series is not in accordance with the underlying economic theory. To accommodate this feature we consider a threshold autoregressive process with the threshold effect only in the intercept term. Although these proceses are stationary, their realizations can closely resemble those of integrated processes for sample sizes relevant in many economic applications. Estimation and inference of these TAR models are discussed, and a specification test for testing their stability is derived. Testing is based on the idea that if integratedness is really caused by level shifts, the series pruged of these shifts should be stable so that known stationarity tests can be applied to this series. Simulation results indicate that in certain cases this test like several linearity tests can have low power. The proposed model is applied to interest rate data. Keywords: TESTS; MODELS; TIME SERIES (search for similar items in EconPapers) There are no downloads for this item, see the EconPapers FAQ for hints about obtaining it. Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:fth:helsec:489 Access Statistics for this paper More papers in University of Helsinki, Department of Economics from Department of Economics University of Helsinki; Department of Economics, P.O.Box 54 (Unioninkatu 37) FIN-00014 Helsingin Yliopisto. Contact information at EDIRC. |
Is your work missing from RePEc? Here is how to contribute.
Questions or problems? Check the EconPapers FAQ or send mail to .
EconPapers is hosted by the
School of Business at Örebro University.