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The threshold nonstationary panel data approach to forward premiums

Nagayasu, Jun (2011): The threshold nonstationary panel data approach to forward premiums.


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This paper analyzes the stationarity of forward premiums in the foreign exchange markets. Considering a wide range of countries and contract periods and taking into account cross-sectional correlations and heterogeneities in nonstationary environments, we confirmed mixed evidence of stationary forward premiums. However, mounting evidence to support the stationarity is provided when regime shifts which likely reflect the effects of the Lehman Shock and changing monetary policies are considered. Thus these events seem to have increased the nonstationary element in the premiums, and our further analysis suggests the effect of these events can be captured by interest rates, leaving the covered interest parity condition as a valid long-run concept.

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