The utility function is U=x^2+y^2, the IC will be concave and a concave IC represents bad. Why does this utility function represent good commodities? - Quora
Various historical utility functions, all convex for losses and... | Download Scientific Diagram
Concave function - Wikipedia
Consumer Theory
The utility of money is a stairway to heaven
Risk aversion - Wikipedia
Concave functions in economics 1. Preliminaries 1 2. Concave function of one variable 4 3. Concave function of more than one v