Central Bank Review, cilt.17, ss.39-45, 2017 (Scopus)
This study
explores the empirical validity of the purchasing power parity (PPP) hypothesis
between Turkey and its four major trading partners,
the European Union, Russia, China and the US. Accounting
for the nonlinear nature of real exchange rates, we employ a battery of
recently developed nonlinear unit root tests. Our empirical
results reveal that nonlinear unit root tests deliver stronger evidence in
favor of the PPP hypothesis when compared to the conventional unit root tests
only if nonlinearities in real exchange rates are correctly specified. Furthermore, it emerges from our
findings that the real exchange rates of the countries having a free trade agreement
are more likely to behave as linear stationary processes.