Not only peculiarities of external factors affecting the level of happiness. About it tell results of research of scientists from the Varna University of Management headed by Michael Minkov (Bulgaria).
Experts has compiled a ranking of happiness across countries and came to unexpected conclusions. It turned out that the happiest people live in Mexico, Ghana, Nigeria, Colombia, and Ecuador. Also feel good residents of Iran, Jordan, China, Hong Kong and Taiwan. Citizens of Central Europe, too happy, scientists say, but more moderately.
Maybe it's the special genes inherent in the process of human development in a particular area. Otherwise explain why Nigerians happier Germans, scientists can't.