In Paraguay, tied with Panama as the most-positive country while doing far worse than Panama by objective measures, street vendor Maria Solis said tough economic conditions were no reason to despair.
"Life is short and there are no reasons to be sad because even if we were rich, there would still be problems," she said while selling herbs used for making tea. "We have to laugh at ourselves."
Comments by people in some of the countries that rank as the world's most and least positive: