Figure 7. Assessing the Functional Form of the Life Satisfaction-GDP Gradient: Gallup World Poll
Real GDP per capita (thousands of dollars)
Source: Gallup World Poll, 2006. Sources for GDP per capita are described in the text.
Sample includes 131 developed and developing countries. See figure 4 for wording of the question. In each panel the short- and long-dashed lines are fitted from regressions of satisfaction
on GDP per capita and the log of GDP per capita, respectively. Real GDP per capita is at purchasing power parity in constant 2000 international dollars.
Figures—7