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Alicja Olejnik
University of Lodz, Faculty of Economics and Sociology, Institute of Spatial Economics, Department of Spatial Econometrics, 37 Rewolucji 1905 r. Street, 90-214 Łódź, Poland
Agata Żółtaszek
University of Lodz, Faculty of Economics and Sociology, Institute of Spatial Economics, Department of Spatial Econometrics, 37 Rewolucji 1905 r. Street, 90-214 Łódź, Poland