The effects are large, as well. Each one-unit increase in happiness (on a scale of 0-10) led to a 12% increase in productivity. Productivity was measured by the number of sales employees made.
A recent study shows gaining weight generally does not reduce happiness. A decade’s worth of data analyzed by a researcher in ...
One large study found just a slight overall dip in happiness between age 20 and age 70—on a scale of 1 to 10, average life satisfaction went from 5.8 to 5.4. What is the happiness curve?
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