In spite of the great U-turn that saw income inequality rise in Western countries in the 1980s, happiness inequality has dropped in countries that have experienced income growth (but not in those that did not). Modern growth has reduced the share of both the very unhappy and the perfectly happy....

This paper shows that within-country happiness inequality has fallen in the majority of countries that have experienced positive income growth over the last forty years, in particular in developed countries. This new stylized fact comes as an addition to the Easterlin paradox, which states that...