Time-Varying Thresholds : An Application to Purchasing Power Parity /

This paper introduces a time-varying threshold autoregressive model (TVTAR), which is used to examine the persistence of deviations from PPP. We find support for the stationary TVTAR against the unit root hypothesis; however, for some developing countries, we do not reject the TVTAR with a unit root...

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Bibliographic Details
Main Author: Leon, Gene
Other Authors: Najarian, Serineh
Format: Journal
Language:English
Published: Washington, D.C. : International Monetary Fund, 2003.
Series:IMF Working Papers; Working Paper ; No. 2003/181
Online Access:Full text available on IMF
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500 |a <strong>On-Campus Access:</strong> No User ID or Password Required 
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520 3 |a This paper introduces a time-varying threshold autoregressive model (TVTAR), which is used to examine the persistence of deviations from PPP. We find support for the stationary TVTAR against the unit root hypothesis; however, for some developing countries, we do not reject the TVTAR with a unit root in the corridor regime. We calculate magnitudes, frequencies, and durations of the deviations of exchange rates from forecasted changes in exchange rates. A key result is asymmetric adjustment. In developing countries, the average cumulative deviation from forecasts during periods when exchange rates are below forecasts is twice the corresponding measure during periods when exchange rates are above forecasts. 
538 |a Mode of access: Internet 
700 1 |a Najarian, Serineh. 
830 0 |a IMF Working Papers; Working Paper ;  |v No. 2003/181 
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