1. International Business School Budapest, OSON Research Laboratory, Záhony utca 7, 1037 Budapest, Hungary and Institute of Economics, Centre for Economic and Regional Studies; Hungarian Academy of Sciences; Budaörsi út 45, 1112 Budapest Hungary
2. Eötvös Loránd University, Department of Regional Science; Pázmány Péter sétány 1/C, 1117 Budapest Hungary