Fig. 2From: The green soul of the concrete jungle: the urban century, the urban psychological penalty, and the role of natureUrbanization and economic development. The relationship between the percent urban of a country’s population and its GDP per capita. Urbanization data taken from the UNPD for 2015. Per-capita GDP taken from the World Bank. Some small island states and nations are excluded from this graph, as are nations with missing dataBack to article page