It seems intuitively reasonable that people in countries
with low average life satisfaction levels would tend to have a higher incidence
of negative emotion. The theory of subjective well-being homeostasis, discussed
in my last post, provides a theoretical basis to predict that will happen. Adaptation
and resilience normally keep life satisfaction within a set-point range, but if
resilience is weak, life satisfaction can fail to recover from negative
experiences. On that basis we would expect low average life satisfaction to be
associated with a relatively high incidence of homeostatic breakdown.
At first sight, Figure 1 appears to provide very limited
support for the homeostasis theory. There are no countries in which high
average life satisfaction is accompanied by a high incidence of negative
emotion. At the other end of the scale, however, there are many countries in
which low average life satisfaction is accompanied by a relatively low
incidence of negative emotion.
The data is sourced from the Gallup World Poll (via World Happiness Report 2013). The negative
emotion data for each country is the average of yes/no answers (yes = 1) to the
question of whether respondents experienced worry, anger, sadness, anger and
depression yesterday. The life satisfaction data is based on the Cantril ladder
which involves survey respondents being asked to rate their lives against an 11
point scale in which the top rung of the ladder (rating of 10) corresponds to
the best possible life and the bottom rung of the ladder (rating of 0) corresponds
to the worst possible life.
Figure 2 shows the expected relationship after controlling
for a range of socio-economic and cultural factors. This involved adjusting the
data on incidence of negative emotion using the results of a regression
analysis. The adjusted data are estimates of what the incidence of negative
emotion might have been in the absence of variation in the socio-economic and
cultural factors (i.e. with the socio-economic variables equal to the average
over all countries and European/American culture).
The regression analysis suggests that at a national level an
increase of 1 unit in average life satisfaction reduces the incidence of
negative emotion by about 0.02 (SE = 0.007) i.e. by about 10% at the world average
level of negative affect. The regression explained about 45% of international
variation in the incidence of negative emotion.
The socio-economic variables included in the regression were
per capita GDP, social support (relatives and friends to count on), freedom
(proportion satisfied with freedom to choose what they do) and corruption
(proportion saying corruption is widespread in business or government). The
estimated coefficients for those variables were all significantly different
from zero, with a negative estimated coefficient on income. It isn’t surprising
that high average incomes could be associated with a high incidence of negative
emotion if not accompanied by high average life satisfaction and social support.
The cultural influence has been accounted for by using
regional dummy variables. The estimates suggest that cultural factors reduce
the reported incidence of negative emotion by the following amounts:
East Asia: 0.134
(SE 0.025)
Africa: 0.104
(SE 0.017)
South Asia: 0.103
(SE 0.027)
Former Soviet Union: 0.092 (SE 0.020)
Central and Eastern Europe: 0.055
(SE 0.018)
South East Asia: 0.050
(SE 0.022)
The low incidence of reported negative emotion in East Asia
is consistent with previous research on cross-cultural difference in subjective
wellbeing. (See, for example a recent article by Lufanna Lai, Robert Cummins
and Anna Lau
– abstract here.)
One of the most interesting findings of the regression
analysis reported above is that the coefficient for Latin America was not
significantly different from zero. This is in contrast to the findings of
studies relating to positive emotion (including those reported on this blog
here and here) which suggests that Latin American culture has a strong positive
impact. It seems that the positivity of Latin Americans does not translate to a
lower incidence of negative emotion in that part of the world.