Wealth inequalities both within and between nations has reached an extreme point and is continuing to increase (Collier P. The bottom billion: why the poorest countries are failing and what can be done about it. Oxford University Press, New York, 2007; Henneberg S, The wealth gaps. Farmington Hills:...

Becoming a rich country requires the ability to produce and export commodities that embody certain characteristics. We classify 779 exported commodities according to two dimensions: (1) sophistication (measured by the income content of the products exported); and (2) connectivity to other...