“…It is desirable to explore the regional price index (hereinafter "RPI") itself as it may significantly affect the real purchasing power of the same sums of money in different regions. This fact has been confirmed in the Czech Republic, (Čadil et al, 2012;Čadil et al, 2014;Zdeněk, Lososová, 2014) but it is also highly probable that this is the case even in other developed economies. The regional price index, based on the classic consumer price index (CPI), expresses the difference in price levels in individual regions within the state (Kraft et al, 2015) The RPI is still a much-neglected economic phenomenon; it has only been systematically examined in two world economies, in the German NUTS 3 regions, (Kosfeld et al, 2008;Kosfeld, Eckey, 2010;Schultze, 2003) and in the United Kingdom (Rice, Venables, 2006;Anastassova, 2006).…”