A
Africa
Americas
Asia
Europe
Middle East
Oceania
B
Africa
Americas
Asia
Europe
Middle East
Oceania
Sources of external variables
| Variable | Source |
|---|---|
| Population, total | World Bank – World Development Indicators (WDI) |
| Trade (% of GDP) | World Bank – World Development Indicators (WDI) |
| Total natural resources rents (% of GDP) | World Bank – World Development Indicators (WDI) |
| GDP per capita (constant US$) | World Bank – World Development Indicators (WDI) |
| V-Dem Liberal Democracy Index (0-1) | Varieties of Democracy (V-Dem) Dataset |
| Disposable Income Gini Coefficient | Standardized World Income Inequality Database (SWIID) |