Mathematical Inequalities & Applications · Volume 10, Issue 1 Decision functions and characterization of their properties 10-04 Pages 29-43 DOI 10.7153/mia-10-04 Downloads Short PDF Full PDF PNG Authors Borbála Fazekas Keywords decision function convexity least squares method monotonicity continuity power means Gini means quasi-arithmetic means Subject classes 26B25 90B50 91B06 93E24 26E60 26E25