The aim of this chapter is made to test the validity of purchasing power parity (PPP) between the Slovak Republic vis-à-vis the member countries of Visegrad Group using Augmented Dickey-Fuller (ADF) test for unit root and various techniques inspecting the presence of cointegration (i.e. the...

This paper explores the remarkable roles of exchange rates when a cryptocurrency is adopted and commonly used as another type of foreign currency in the international economy. First, in order to examine its movement, we describe the price of a cryptocurrency as the relative price in terms of a...