Validity of the Purchasing Power Parity Hypothesis for Türkiye: Evidence from Flexible Fourier Unit Root Tests

The purchasing power parity (PPP) hypothesis suggests that the prices of similar goods in different countries will be the same. In other words, it is stated that prices will remain stable worldwide. In this context, this study is important in terms of price stability. The aim of this study is to determine whether the PPP hypothesis is valid or not in Türkiye. In this context, it is aimed to provide policymakers with a perspective in terms of the monetary policy to be implemented. The data range