The relationship between SWB and international migration desires at the national level. (A) Scatter plot of SWB coefficients representing the relationship between the desire to emigrate and SWB by country against natural logarithm of GDP per capita, PPP. Red dots represent 71 poor countries and blue dots represent 71 rich countries, which were divided by the median of GDP per capita. (B) Scatter plot of national average international migration desires against national average SWB in poor countries. (C) Scatter plot of national average international migration desires against national average SWB in rich countries. Gray area represents the 95% confidence interval.