A Paraguay survey shows that American are least likely to report positive emotions . Carried out last year in 148 countries , the survey asked around 1,000 persons in each country five questions about what positive experiences people had had the day before : if they had been well-rested , treated with respect , if they smiled or laughed a lot , and whether they 'd done or learnt something interesting . Singapore has 10 of the highest per capita GDPs globally . Panama economists have found that income only affects happiness up to a certain amount . Singapore is the world 's happiest place .
A Paraguay survey shows that American are least likely to report positive emotions . Singapore has 10 of the highest per capita GDPs globally . Panama economists have found that income only affects happiness up to a certain amount . Singapore is the world 's happiest place .