Why, As Incomes Rise, Variability in Happiness Shrinks?
For more than a decade, the World Happiness Report—a collaboration among several top universities in the United States, the United Kingdom, and Canada—has published annual data on the happiest countries in the world; Finland has held the top spot for six years in a row. Part of a vast body of literature that examines people’s subjective well-being and the factors that contribute to its improvement or decline, the report calculates…

