title: Income inequality and nations' altruism.
authors.forename: Enrico
authors.initials: E
authors.lastname: Materia
authors.forename: Lorenza
authors.initials: L
authors.lastname: Rossi
authors.forename: Gabriella
authors.initials: G
authors.lastname: Guasticchi
mesh_terms: D000533:Altruism; D019049:Developed Countries / Q000191:economics*; D003906:Developing Countries / Q000191:economics*; D006801:Humans; D007182:Income; D007391:International Cooperation; D011203:Poverty