The pursuit of happiness is a desire that everyone has in life. The behavioral economics can help to identify constraints to achieve the true happiness. This study made an attempt to identify some possible determinants to explain the happiness of university professors in higher education institutions in the city of Passo Fundo/RS. Data were collected through questionnaires and analyzed using multiple regression models in seven different groups, classified into happiness by sex; happiness by marital status; happiness by age; happiness and money; happiness, sports and health; happiness, friendship, love relationships and sex life; and happiness, creativity and organization. The results show that money is not one of the major constraints to ac...