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Real Interest Rate Parity and Two Structural Breaks: African Countries Evidence

Chi-Wei Su, Hsu-Ling Chang and Yan Liu

African Development Review, 2013, vol. 25, issue 4, 478–484

Abstract: This study applies Narayan and Popp's () unit-root test with two endogenous breaks to assess the validity of long-run real interest rate parity (RIRP) via investigating the non-stationary properties of the real interest rate convergence relative to South Africa for ten African countries. This method has been proven to be more powerful than the other unit root models with two breaks (Narayan and Popp, ). Our findings clearly indicate that RIRP holds true for five countries, which implies that the choices and effectiveness of the monetary and fiscal policies in the African economies will be highly influenced by external factors originating from South Africa. Our results have important policy implications for these African countries under study.

Date: 2013
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