Can happiness be measured? Is it the outcome of a single factor or is it a multidimensional construct? Does a higher income suggest a higher level of happiness? Can we compare happiness levels between different countries based on their individual incomes? Is there a cutoff level of absolute income that can keep us from being unhappy, or is happiness a relative concept which cannot be measured?
A long-term study by Harvard University revealed that close relationships are the biggest determinants of happiness - more so than money, fame, intelligence, good genes, or social class (Mineo, 2017). However, although necessary, good relationships alone are not sufficient to attain or satiate happiness. In fact, happiness is a multidimensional phenomenon determined by a multitude of factors. According to the World Happiness Report 2020, predictors of average happiness across countries include income measured in terms of per capita GDP, social support, healthy life expectancy at birth, freedom to make life choices, generosity, perceptions of corruption, positive affectivity, and negative affectivity. Of these various factors, social support appears to be the largest contributor to happiness, a finding in line with the outcome of the study conducted by Harvard University. Income follows as the second largest contributor to happiness, which will be represented by life evaluation for the purposes of the present report.
Although there exists an established relationship between income and happiness, studies have shown that happiness does not rise indefinitely with a rising income. There is a point after which more income does not significantly lead to greater happiness, when considering the life evaluation component of subjective wellbeing. This satiation point occurs at different levels of income in different regions and countries based on price levels and costs of living, and it also differs between genders and educational levels (Jebb and others, 2018).