In my last post I pointed out that it is
not possible to measure perceptions of progress accurately by using surveys to measure
average life satisfaction at different times and then observe to what extent it
has risen or fallen. As a result of changing reference norms, people who value
an expansion of economic opportunities cannot necessarily be expected to show
rising satisfaction with their lives in successive happiness surveys.
I have just discovered
that a similar point was made by Francis Heylighten and Jan Bernheim over a
decade ago, in an article that seems to have attracted little attention. The
authors made the point as follows:
‘Progress could in
principle be measured through the change over time of average scores of
subjective well-being. However, the existing longitudinal data show little improvement.
These survey results are intrinsically insensitive to developments over time,
because SWB is typically evaluated relative to proximate, and therefore
salient, reference points, such as peers or expectations based on recent
experience’. See: Heylighen F.
& Bernheim J.(2001): "Measuring Global Progress Through Subjective Well-Being", in: Proceedings
of the III Conference of the ISQOLS.
One of the suggestions
that Heylighten and Bernheim made to correct this distortion was to develop a
progress indicator from variables that explain a high proportion of cross-country
differences in life satisfaction.
If that approach was
followed to develop an indicator to measure perceptions of progress, recent research by John
Helliwell and Christopher Barrington-Leigh suggests that the relevant variables
to include might be: the log of household income; whether the respondents had
relatives or friends to count on if needed; whether the respondents were
satisfied with their freedom to choose what to do with their lives; whether
corruption was widespread in business and government; and whether they had
donated money to a charity in the past month. Their analysis suggests that
people in both high-income and low-income countries place about the same value
on log income (use of logs allows for declining marginal utility of income) but
people in high-income countries place more value on variables other than
income. See: ‘Measuring and Understanding Subjective Well-Being’ Canadian
Journal of Economics, 43 (3), 2010.
However, I’m not sure that the suggested approach
would entirely solve the problem. It seems likely that perceptions that people in
low-income countries have of the best possible life would involve a less opulent
life-style than the perceptions of people in high-income countries i.e. perceptions of the best possible life rise with increasing wealth (and the marginal utility of income may not decline as rapidly as cross-country regressions seem to imply). In my view,
that means it would be preferable to measure perceptions of progress directly
using the method suggested in my last post, i.e. by comparing the answers that survey
respondents provide when asked to rate their past lives at the same time as
their current lives. An even better approach to measurement of progress, as suggested in the book I am writing, would be to identify the characteristics of good societies and measure to what extent societies were adopting those characteristics.
There may be a case to be made that the
well-being of people in high-income countries would be higher if the move
toward post-materialistic societies was more rapid. But the people who want to
make that case should argue it openly, rather than pretending that responses to
happiness surveys indicate that most people do not place much value on material progress.
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