Under CopyrightWappler, StefanStefanWapplerUlrich, JensJensUlrichRauch, MathiasMathiasRauch2022-03-0816.12.20202011https://publica.fraunhofer.de/handle/publica/30066810.24406/publica-fhg-300668en620670Identifying Regional Economic Concentrations in CEE Countriesstudy