Brockmann, Hilke (contributor) - 2009
account for less than 10% of the variance. (Un)happiness in midlife is more strongly determined by gender-specific occasional …Does happiness vary with age? The evidence is inconclusive. Some studies show happiness to increase with age (Diener et … Christian, 1998; Blanchflower and Oswald, 2008) or highest happiness levels occurring during middle age (Easterlin, 2006 …