Over at Club Troppo, James Farrell summarises the main elements of the economic research agenda on happiness, and some of the standard objections to it. For those who came in late, and probably didn’t imagine economists ever thought about happiness, the crucial finding is that “Cross country data shows pretty consistently that on average happiness increases with income, but at a certain point diminishing returns set in. In the developed world, people are not on average happier than they were in the 1960s.”
The data that supports this consists of surveys that ask people to rate their happiness on a scale, typically from 1 to 10. Within any given society, happiness tends to rise with all the obvious variables: income, health, family relationships and so on. But between societies, or in Western societies like Australia over time, there’s not much difference even though both income and health (life expectancy, for example) have improved pretty steadily for a long time.
I’ve long argued that these questions can’t really tell us anything, and an example given by Don Arthur gives me the chance to put it better than I’ve done before, I hope.
Suppose you wanted to establish whether children’s height increased with age, but you couldn’t measure height directly.
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