Re-examining the real interest rate parity hypothesis (RIPH) using panel unit root tests with asymmetry and cross-section dependence
Aysegul Çorakcı Eruygur,
Furkan Emirmahmutoglu () and
Tolga Omay ()
Empirica, 2017, vol. 44, issue 1, 91-120
Abstract This paper investigates the validity of the real interest rate parity hypothesis (RIPH) using a panel unit root approach. For this purpose, first we estimate the possible nonlinear data-generating processes of the real interest rate differential series and using these estimates determine which panel unit root test is better for analyzing the RIPH. To this end, smooth transition autoregressive and threshold autoregressive (TAR) models are estimated for two different panels of countries: G7 and post-Soviet transition economies. The results show that the data displays both strong asymmetry and high transition speed. Therefore, secondly, we propose a new panel unit root test where the alternative is stationary with asymmetric TAR adjustment, and provide their empirical power properties. Finally, we demonstrate that our newly proposed test is able to provide conclusive evidence in favor of the RIPH in contrast to the other panel unit root tests considered.
Keywords: Real interest rate parity; Asymmetric adjustment; Nonlinear panel unit root; Cross-section dependence (search for similar items in EconPapers)
JEL-codes: F40 E40 C22 (search for similar items in EconPapers)
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