Parity Reversion of Absolute Purchasing Power Parity

descriptionPublicationkeyboard_double_arrow_right Article 29 Nov 2016Publisher:DEStech PublicationsJournal:DEStech Transactions on Economics and Management (eissn: 2475-8868,

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Authors: Zhi-bai ZHANG; Zhi-cun BIAN;

doi: 10.12783/dtem/icem2016/4036

Parity Reversion of Absolute Purchasing Power Parity

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Abstract

In this paper, we study the parity reversion of 40 main bilateral real exchange rates (RERs) constructed by actual price levels to be consistent with absolute purchasing power parity (PPP), rather than by price indexes as used in popular studies. The time series ADF and KPSS unit root tests reveal that 39 RERs are stationary in their periods of about 60 years or less. The half-lives span from 1 to 40 years and are mostly outside of the consensus range of 3-5 years in relative PPP. Thus, the parity reversion of absolute PPP may be very different from that of relative PPP.

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