Link between income and happiness is mainly an illusion: "People surveyed about their own happiness and that of others with varying incomes tended to overstate the impact of income on well-being, according to a new study. Although income is widely assumed to be a good measure of well-being, the researchers found that its role is less significant than predicted and that people with higher incomes do not necessarily spend more time in more enjoyable ways.

Two Princeton professors, economist Alan B. Krueger and psychologist and Nobel laureate Daniel Kahneman, collaborated with colleagues from three other universities on the study, being published in the June 30 issue of Science. The new findings build on their efforts to develop alternative methods of gauging the well-being of individuals and of society. The new measures are based on people's ratings of their actual experiences, instead of a judgment of their lives as a whole. "