Economist Review of book on Happiness
[A]ccording to many surveys taken in rich countries. These tend to show that, once a country has lifted itself out of poverty, further rises in income seem not to create a meaningful rise in the proportion of people who count themselves as happy.
Among many things, the behaviourists have found that it is relative, not absolute wealth, that matters most to people.
Mr Layard cites as evidence a study in which [...] students claimed to prefer earning $50,000 a year when their peers are on only $25,000 to a world in which they earn $100,000 while their peers get more than double that amount.
So, Lord Layard's thinking goes, by spending 90 hours a week in the office, you may be improving your own income, but you are also causing other people to feel less satisfied with theirs. They may be encouraged to work longer themselves just to keep up, taking from the time that gets devoted to family and community.
Fortunately, he notes, economists have already figured out how to deal with such externalities: tax them so that the polluter internalises the cost of his actions. And so, near the top of Lord Layard's list for improving human happiness, comes the following recommendation: much higher rates of income tax to tame the rat race.