Testing international parity hypothesis in a multivariate identified co-integrating system: the Turkish evidence

In this paper, a multivariate co-integrating model is constructed upon the Turkish economy to examine the validity of the purchasing power parity and the uncovered interest parity theories simultaneously. Estimation results obtained from the identified co-integrating vectors support a priori modelling expectations and yield evidence to the existence of both parities when integrated within each other. However, no evidence is obtained in favor of the two international exchange rate determination parity hypotheses when formulated in isolation. A policy inference derived from the paper can be summarized such that, since the market mechanisms seem to closely affect the long-run course of the nominal exchange rate, exchange rate based stabilization programs should be appreciated by economic agents in a cautious way.