Piekut, Marlena; Knapková, Miroslava - In: Amfiteatru economic : an economic and business research … 27 (2025) 68, pp. 180-195
European households from 2000 to 2021. Using clustering methods and regression analysis, it examines consumer spending patterns … employs Ward's hierarchical clustering and k-means clustering to categorize countries based on their expenditure structures …