TY JOUR TI MATHEMATICAL MODELING AS A TOOL FOR ANALYZING VALUE-BASED CORRESPONDENCES IN THE HOUSING MARKET KW econometric modeling KW housing market KW pricing KW regression analysis KW variance analysis KW market segmentation KW vertical stratification KW horizontal stratification KW Perm JO MOSCOW ECONOMIC JOURNAL AU Pushkarev, G.A. AU Ovchinnikov, Y.A. AU Anders, E.D. PY 2025 IS 10 PB Electronic science