The second World Happiness Report further strengthens the case that well-being is a critical component of economic and social development. The report describes how measurements of well-being can be used effectively to assess the progress of nations.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/r...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/r...